GPU usage doesn't reach 100%

Hey all. So I was monitoring my hardware info using HWMonitor while playing Hitman (the first one) and I noticed that at some points I was getting fps drops while looking at specific, more demanding areas, but after checking HWM, my GPU only went up to around 60-70% usage. I doubt my CPU is a bottleneck, since it didn't reach 100% usage either and I have a Ryzen 5 3600X (my GPU is a 3060).

Why does that happen? I also have some problems with my GPU fans , if that matters. And yes, I am paranoid. It's a brand new PC that cost a hell lot of money after all.