Thank you for your answer! Yes, I'm pretty sure about these changes. I thought about that too, but I can clearly see games are weird.
Yes I understand. I changed RAM because ASUS said that too. My cpu is not hot. And I tried more times to reinstall Windows 10 or Windows 11. Now I found out there was a BIOS update I downloaded that. Now maybe it disappeared, but I will tell an update, when I have more time to test it. Because there was a change an older BIOS update ASUS said that
https://www.asus.com/support/faq/1053456/ (in this link this was new BIOS option called performance preferences in an older BIOS version, they say for my CPU should be on ASUS Advanced OC profile). But now the newest BIOS update they wrote that "The option to disable C1E in the BIOS has been removed to ensure it remains enabled, reducing processor stress and maintaining stability per Intel's recommendation". Idk exactly this is Performance Preferences option, but now it's on Intel Default Settings. It used to be on ASUS Advanced OC. So I hope that will fix that. Or maybe my BIOS can it go wrong if I changed the XMP profiles a lot?
Update: After BIOS update now I don't see these changes, but when Im playing online it's still not smooth. I use ethernet, but maybe it's my router? Because there was problems with this router back then and we just did a reset, but not helped much. And it's still like I got a little bit different game when I start my pc from shut down (it was smooth in online too). After a restart it seems like online is worse and a little bit faster steering. Can it caused by a BIOS settings called fast startup? Because I disable it. I know what its doing but maybe.