I have to admit, I've not replied to the previous comment because it came across as condescending. Helpful in its way, but condescending enough to be unhelpful.
But I would like to respond to this one.
I never actually stated there was a problem with the hardware, and I didn't actually ask for any specific help with my setup. I'm aware of my own limitations as I'm new to both gaming PCs and Linux. What I actually asked for was if anyone knew of any useful guides I could browse to help me get an understanding of what I need to optimise. Perhaps I shouldn't have offered any further context to what I'm trying to achieve, because that's just served to allow three different people in the replies to criticise my ability to request support.
I'm happy to admit that I don't know what I'm on about here, but I am willing to learn, and I'm happy to take on board that maybe I need to be clearer in future. But the attitude from several in these replies has come across as almost gatekeeping. A weary sigh of a comment, a reluctant imparting of knowledge, for which the only payment is me knowing my place.