pc is lagging

My pc is lagging

version: Linux parrot 5.14.0-9parrot1-amd64 #1 SMP Debian 5.14.9-9parrot1 (2021-10-26) x86_64 GNU/Linux

I am using windows 10 before this.That time i can run minecraft 1.16.5 and chrome or obs with mods. But now if i run minecraft 1.8.9 with obs or chrome system become almost unresponseable. PLEASE HELP ME…