Yes, 30 FPS at best just makes my inputs feel laggy, but usually it also strains my eyes and has given me actual migraines. Bloodborne was the worst offender because of the need to focus on choppy animations of bosses.

I've already answered the PC build question, but to summarize: any comparable build to a PS 5 Pro that uses new components from brands that make reliable hardware typically cost over one grand USD. Also most people that I see recommend these builds typically don't even bother including peripherals like a controller and kb+m in the cost. Not to mention that by going into the budget gaming PC route will also generally require additional time to tinker with graphic settings in each game to try and get adequate performance.

Anyway, I've done this before, I had a higher end PC in my living room hooked up to my TV a few years ago. The experience wasn't terrible, but also wasn't as good as just having a console where everything is designed to be operated via controller. So honestly I don't see the point of paying extra money for something that seems like the worse option for me.

I'll be building a higher end gaming PC with a 480hz OLED display in mind next year, but yeah, I won't be using that from a couch.