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If you're experiencing FPS drops, stuttering, input delay, or crashes, this might help. The causes for issues are highly variable between different PCs, so your mileage may vary.

Disclaimer: These are just suggestions, attempt at your own peril. I hope it goes without saying that we can't be held liable for any issues that may occur. Please seek further assistance if you're unsure of anything, and be sure to create regular restore points throughout this process.

BEFORE PROCEEDING, PLEASE BACKUP IMPORTANT FILES AND CREATE A SYSTEM RESTORE POINT JUST IN CASE

This is just a basic Windows method, other backup programs/methods may be superior.

1. From the desktop, click the Windows start menu and search for "create a restore point", then open it

2. Click "Configure", then select "Turn on system protection"

3. Use the slider to change max usage, at least 1GB is recommended

4. Click "OK", then "Create"

5. Name it something like "pre wavu fix" so it's easy to identify

6. Repeat above for all other drives if necessary

If any step in this guide causes unwanted system changes: try click "System Restore" from the same window used above, and follow the prompts.

With that out of the way, we may begin.

Starting with easier possible fixes.

Disable fullscreen optimisation (https://www.youtube.com/watch?v=FZBiX8fVo0o)