Unplayably low framerates

[DTMAce-1687]

This might help shed some insight on what you can try:

D4 PC crashes constant

OKAY. I have spent the last hour working with my Nephew remotely to address his graphic card issues: He is running an AMD CPU with an EVGA 3080. Now, he was seeing 80+ degrees on the GPU, but getting hard lock crashes that forced a power shutdown or reset of the PC to get back to working. Card didn’t seem to be hot, but crashing hard. So. We sat down and went over his system and settings: He runs 3 monitors, one of which is a 1440p 165hz screen. All 3 are connected to the GPU. We went…

I only suggest this, as you have an AMD setup with a 3080 running a 4k. His listed here was a 1440p, but similar in that respect.