You are getting Xid erros:
Sep 24 01:53:29 malnajdi kernel: [ 1058.867749] NVRM: Xid (PCI:0000:01:00): 16, pid=0, Head 00000001 Count 00018cfa
According to this:
This indicates a driver error.
I’d try to disable
ForceCompositionPipeline=On. I don’t think you want that while gaming. Disable it in nvidia-settings and then save the xorg.conf (like you already did (as root)).
Also this pops up:
[ 0.011518] [Firmware Bug]: TSC_DEADLINE disabled due to Errata; please update microcode to version: 0xb2 (or later)
Might not be related, but I think it should be taken care of.