Question Why do some games runs in 1 fps?

Aug 10, 2021
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I had an old pc where I used to play all my games (i5 7400 with intel hd 630), but with lack of manteinance it just stopped working bc a lot of factors and I ended up buying the same processor, changing the hard drive and fixing the RAM. Now the computer seems to work well, until i play GTA 5 ot Black Ops 2. The games runs just well until at some point the computer just stops using the gpu and the cpu, the game keeps running but at 1 fps and the usage of the hardware drops below 20%. Idk if it has something to do with my hardware or software, bc I have all my controllers up to date and the system is practically new.