Games drop to 1-10 fps when input device used after running for around 1/2 an hour.

[versed coyote]

As title, otherwise if there is no user input the games still runs fine at 100s of fps. Though the lag is worst when using a mouse, any form of input device triggers the frame drops.
Games will run perfectly fine for around half an hour and then suddenly become unplayable. Restarting the game fixes this but inevitably after around half an hour the problem returns.

Any ideas for fixes or what causes this will be greatly appreciated.

[dreamy crater]

Couple of questions, what games are you playing? Are you playing them naively or through proton? What system are you running exactly (AMD or Nvidia gpu, cpu, ect.)?

for system specs you can run a quick inxi -Fxxxz command in terminal