Minecraft 120fps, despite rtx 2070 and ryzen 5 2600?

So my question is why I no longer get the fps like at the beginning a year ago I still had an average of 300-900 fps but now in some moments I only have 30.

Already tried everything except to reinstall Windows.

Try to raise the priority of minecraft… Google how it works

Also tried formatting or cleaning the housing?

How many Hz does your monitor have?

144

Check GPU and CPU usage and check the ingame settings

Keep the temps and keep an eye on the clock

The CPU utilization is 23% and the GPU is 37%

Try to allocate more RAM to Minecraft via the launcher. And identify V-Sync in the Minecraft graphics settings!

Then you capped somewhere