Fast SSDs can shorten game launches, level transitions, fast-travel screens, shader-cache reads, and texture streaming delays—but they cannot eliminate every wait. CPU decompression, shader compilation, online authentication, engine design, and asset-heavy mods can still dominate loading. The biggest real-world improvements usually come from moving a game off a slow or nearly full drive, fixing an accidental PCIe or SATA bottleneck, and avoiding background disk activity while the game loads. In 2026, even a capable NVMe drive can feel slow when it is installed, configured, or maintained poorly.
Quick Wins
| Change | Effort | Expected gain |
|---|---|---|
| Move the game from a hard drive or external USB drive to an internal SSD | Low to medium | Very large when replacing a mechanical drive |
| Free space on the SSD and keep TRIM enabled | Low | Small to moderate, especially on a nearly full drive |
| Close download clients, backup tools, and disk-heavy background tasks | Low | Small to large during active disk contention |
| Confirm an NVMe drive is using the expected PCIe link and not a reduced slot | Medium | Moderate to large if the drive is bottlenecked |
| Update SSD firmware, chipset drivers, and storage-controller drivers | Medium | Small to moderate; potentially major when fixing a fault |
| Repair game files and remove problematic mods | Low | Small to moderate; larger with damaged or excessive mod files |
Step-by-Step Tuning
1. Put the game on an internal SSD, preferably NVMe
What causes it: A hard drive has high random-access latency, which hurts games that request thousands of small files during startup or level streaming. External drives can also be limited by their USB enclosure, cable, port, or power behavior. A SATA SSD is still a major improvement over a hard drive; an internal NVMe SSD is usually the best location for modern games with frequent asset streaming.
How to check: Open Task Manager with Ctrl+Shift+Esc, select Performance, and click each disk. Windows labels most devices as SSD or HDD. To identify where a game is installed, open Steam and go to Steam > Settings > Storage. In the Xbox app, select your profile picture, open Settings > General, and check the install drive. For other launchers, inspect the game’s installation settings or its folder path.
What to do: In Steam, choose the game, click the gear icon, select Properties > Installed Files > Move install folder, then select an internal SSD library. If no suitable library exists, go to Steam > Settings > Storage, click the + button, and create one on the SSD first. For the Xbox app, go to Settings > General > Change where this app installs games by default, select the SSD, then use the game’s Manage options to move it where supported.
How to undo: Use the same launcher move feature to return the game to its original drive. Do not manually cut and paste a launcher-managed game folder unless the launcher specifically supports that method.
2. Make sure the SSD has enough free space and is being trimmed
What causes it: SSDs need free blocks for efficient writes, background cleanup, shader-cache updates, patches, and temporary game files. When a drive is nearly full, sustained performance can fall and large updates may interfere with loading. Windows TRIM tells the SSD which deleted blocks can be prepared for reuse.
How to check: Open Settings > System > Storage and check available capacity. As a practical target, keep roughly 10% to 20% of the SSD free, with more headroom preferred for smaller drives or drives that also hold Windows. Then press Win+R, type dfrgui, and press Enter. Select the SSD and review its media type and optimization status.
What to do: Remove unused games from the SSD, empty the Recycle Bin, and move large recordings or archives to another drive. In the Optimize Drives window, select the SSD and click Optimize. This sends TRIM; it does not perform a traditional hard-drive defragmentation pass. You can also open an elevated Terminal and run defrag C: /L, replacing C: with the appropriate drive letter.
How to undo: There is nothing harmful to reverse after TRIM. If you moved files to free space, move them back only if storage layout matters more than maintaining SSD headroom.
3. Remove background disk contention before launching a game
What causes it: Windows Update, cloud syncing, antivirus scans, torrent clients, game downloads, recording software, and backup utilities can compete for SSD bandwidth and queue depth. Even fast drives can show delayed game loads when another process is constantly reading or writing.
How to check: Launch the game until it is loading, then press Ctrl+Shift+Esc. In Task Manager > Processes, click the Disk column to sort by activity. For more detail, press Win+R, enter resmon, and open the Disk tab. Look for high read or write activity from processes unrelated to the game.
What to do: Pause downloads in Steam through Downloads > Pause. Pause OneDrive from its system-tray icon with Help & Settings > Pause syncing. Exit torrent clients and postpone backup jobs. In Windows Security, open Virus & threat protection > Manage settings and confirm a full scan is not currently running. Let Windows Update finish rather than repeatedly interrupting it.
How to undo: Resume syncing, downloads, and backups after playing. Do not permanently disable antivirus protection or Windows Update just to improve load times.
4. Verify the NVMe SSD is using the correct slot and PCIe connection
What causes it: Motherboards may share PCIe lanes between M.2 slots, SATA ports, GPU slots, and expansion cards. Some M.2 slots support fewer PCIe lanes, connect through the chipset rather than the CPU, or support SATA-only M.2 drives. A poorly seated drive can also negotiate an unexpected link speed.
How to check: Open Device Manager by right-clicking Start and selecting it, then expand Disk drives to identify the SSD model. Check your motherboard or laptop documentation for the specific M.2 slot’s PCIe generation and lane configuration. If your SSD manufacturer provides a management utility, use its drive-information page to review negotiated PCIe generation and lane width. Also inspect BIOS or UEFI storage pages for M.2 status.
What to do: Shut down the PC, switch off the power supply if applicable, and disconnect power. Move the SSD to the primary CPU-connected M.2 slot if your manual identifies one and it is available. Reseat the drive at an angle, secure the retention screw or latch, and reinstall the thermal pad and heatsink correctly. In UEFI, leave the relevant M.2/PCIe setting on Auto unless the board manual directs otherwise. Update motherboard BIOS only when the vendor lists a storage, compatibility, or stability fix relevant to your system.
How to undo: Return the SSD to its previous slot and restore altered UEFI settings to Auto or Load Optimized Defaults. Record original settings before changing them.
5. Update SSD firmware and platform storage drivers
What causes it: Firmware bugs can affect power-state transitions, cache behavior, reliability, or compatibility. Old chipset and storage-controller drivers can also cause poor performance, wake delays, or intermittent stalls.
How to check: Find the SSD model in Device Manager > Disk drives. Check the drive maker’s installed management software for firmware status. For the platform, open Settings > Windows Update > Advanced options > Optional updates and review available driver updates. Identify your motherboard or laptop model in Settings > System > About.
What to do: Install SSD firmware only through the drive manufacturer’s official utility and follow its backup warning. Then install the latest chipset package supplied for your motherboard or laptop model. Restart when prompted. Avoid random “driver updater” tools; storage drivers should come from Windows Update, the PC manufacturer, motherboard vendor, or chip vendor.
How to undo: If a driver creates a problem, open Device Manager, right-click the affected device, choose Properties > Driver, and select Roll Back Driver when available. SSD firmware usually cannot be safely downgraded, so back up important data before updating.
6. Repair game files, reduce mod overhead, and clear only safe caches
What causes it: Corrupted archives, incomplete patches, outdated mods, and bloated mod managers can add file checks, failed asset loads, and unnecessary startup work. Some games load every enabled mod or scan large custom-content folders before reaching the menu.
How to check: If only one game loads slowly, compare it with another game on the same SSD. In Steam, open Library > [game] > gear icon > Properties > Installed Files. Review mod lists in the game launcher or mod manager and check whether the issue began after an update or mod installation.
What to do: Click Verify integrity of game files in Steam. In the Xbox app, select the game, choose Manage > Files > Verify and Repair when available. Disable all mods, test loading, then re-enable them in small groups. Keep only current versions. For shader cache issues, use the GPU driver’s normal cache-reset option only when troubleshooting, because the first launch afterward may be slower while shaders rebuild.
How to undo: Re-enable mods one group at a time after identifying the offender. If you cleared a shader cache, simply play the game; the driver and game will rebuild it over time.
7. Check power settings and SSD health when slowdowns are inconsistent
What causes it: Aggressive power saving can make a storage device take longer to wake, while overheating, low remaining drive health, or controller errors can cause uneven performance. This is more likely when loads are sometimes normal and sometimes unusually slow.
How to check: Open Control Panel > Hardware and Sound > Power Options > Change plan settings > Change advanced power settings. Expand PCI Express > Link State Power Management. Check SSD health in its manufacturer utility, including temperature, warnings, and available spare capacity. In Event Viewer > Windows Logs > System, look for repeated storage-related warnings around the time of stalls.
What to do: For troubleshooting, set Link State Power Management to Off while plugged in on a desktop. Ensure the M.2 heatsink is installed correctly and that case airflow reaches the motherboard area. Back up data immediately if the SSD utility reports warnings or declining health.
How to undo: Set Link State Power Management back to Moderate power savings or your prior value if power consumption or laptop battery life matters more. Do not ignore health warnings; replace a failing drive instead of attempting to tune around it.
Measure Before and After
Measure the same loading event before changing anything: from clicking Play to the main menu, from selecting a save to player control, or from initiating fast travel to regaining control. Use a phone stopwatch or record the screen, then repeat the test at least three times under similar conditions. Note whether the first run is different from later runs, since shader compilation and cache warming can make initial loads slower.
Also watch Task Manager > Performance during the load. If disk activity is low while one CPU core is heavily used, the game may be CPU- or decompression-limited rather than SSD-limited. If the SSD is pegged while another process is writing heavily, address disk contention first. Change one variable at a time and keep a short log of the result, game version, mods enabled, and whether the system was freshly restarted.
What Not to Do
Do not defragment an SSD manually. Windows Optimize Drives handles SSD maintenance correctly through TRIM. Do not disable the page file, Superfetch/SysMain, Windows Search, antivirus, or Windows Update based on generic tweak videos; these changes often create stability, security, or usability problems without reliably improving game loads.
Do not use registry cleaners, RAM-disk tricks, fake “SSD optimizer” utilities, or random storage-driver packages. Avoid filling an SSD to the last few gigabytes, and do not assume a higher advertised sequential-read rating guarantees better game loading. Finally, do not expect a new SSD to fix CPU-bound shader compilation, server waits, or a game engine that intentionally hides loading behind animations.
FAQ
Will an NVMe SSD always load games faster than a SATA SSD?
No. NVMe has more available bandwidth and lower protocol overhead, but the visible difference depends on the game, CPU, decompression method, file layout, and engine. Moving from a hard drive to any good SSD is usually the more meaningful upgrade.
How much free SSD space should I leave for games?
Aim for roughly 10% to 20% free capacity as a practical baseline. Leave additional room if the drive holds Windows, captures, large game patches, or frequently changing mod files.
Should I disable write caching to make game loads safer or faster?
No. Leave Windows’ default storage caching behavior in place unless you are diagnosing a specific issue under manufacturer guidance. Changing write-cache policies can reduce performance or increase data-loss risk during an unexpected shutdown.
Why is the first load after a driver update slower?
Graphics drivers and games may rebuild shader caches after updates, file verification, cache clearing, or major patches. Later loads can improve once those caches are recreated. Judge changes using several repeat tests, not only the first launch.
