I have used 1.16.5 and got major stuttering

I have downgraded to 1.16.4 and stuttering is gone - game is actually playable and fun

My PC should meet minimum requirements for minecraft

major stuttering every 10-20 seconds isn't fun

fps goes from 300 - 0fps for a few seconds

CPU Usage while playing 45%-75% even when stuttering

My Specs
windows 10 Home

AMD Athlon X4 860K

16GB ddr3 ram

GTX 1650 OC