Updated to Big Sur and getting extreme system lag after 5-10 min of use or even sitting inactive

So I recently updated to OC latest version as well as from Catalina to Big Sur. I installed it fresh and then migrated files from Time Machine. The system was working pretty smoothly but now am getting random lag starting after 5-10 min of use. The thing is, even if I just leave it without logging in after reboot, it will still start to lag. The system is still working, if I leave a file downloading it will continue to download, but the screen is just getting really low FPS for lack of a better explanation. I even set my clock to flash the seconds and it only updates every 3-4 seconds. Not sure if anybody else has experienced this kind of issue before?

MB: Gigabyte Z390 Designare

CPU: Intel I7-8700

RAM: 32GB mismatched operating at 2400

GPU: Reference Radeon RX 5700XT

HD: Sabrent RocketQ 2TB

OC 0.6.3

Kexts used: WEG, Lilu, VirtualSMC, RadeonBoost

Boot arguments: agpmod=pikera & disable USB port #HS14

submitted by /u/max_retik
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