Extreme CPU usage at low presets.

The past couple dev builds of Beta 2.3.0, Ive been having this issue where after like 5m of playing. the game goes to 0 fps gradually and stay's that way till crash. During this time my entire pc is barely usable till I force quit the game. I noticed this happen instantly after I change the CPU preset from medium to high or max, But sometimes it just happens without me changing the preset and leaving it at medium to low.

Actually after installing the latest release. I had the same issue. Now I don't know what to do? I allocated 24gb of ram (out of 64) 7800x3D, 3080 OC 10gb. This has happened now on 2 modpacks. my custom modpack, and Enderverse "Deka vu" modpack after adding DH to it manually.
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