I'm more of a completionist than a speed runner. However, certain games will sometimes require speed runs for various completion bonuses or achievements and if the games are designed with it in mind, I'm much more likely to attempt it.
For example, speed running is part of the natural progression of most Resident Evil games as you'll have memorized routes and puzzle solutions from playthrough to playthrough which significantly cuts down on time and can shrink down your initial 9-12 hour playthrough into a 2-4 hour run, making the games immensely replayable. The only real hurdle is being able to employ various ammo conserving tactics and combat strategies which is a lot easier than it may seem and part of the fun of survival horror games anyway.
Sonic games also tend to have a speed running component to them by grading you at the end of each stage based on how quickly you can get through them and I have dabbled in S ranking some of the games when there's specific achievements for them. Same with the Halo games in the Master Chief Collection which are surprisingly fun to run through without shooting everything in your way.
Although, surprisingly, for as often as I do replay them, I've never attempted speed running through any Metroid game despite them being designed for it in pretty much the same way Resident Evil games are. I can't say I ever attempted 2 back to back playthroughs of a Metroid game before as navigation is way more chaotic and the maps are just far too sprawling for me to memorize every location, upgrade, and path. Especially when you have to know how to sequence break and pull off platforming feats.
But overall, I don't really ever aspire to beat games quickly for the sh*ts and giggles of it. I'm not trying to break any records and I personally find it to be more of a waste of time than playing video games already are. It's cool that people have discovered ways to break games with glitches and bypass sections or even the majority of the game, but I imagine mastering glitches or perfecting games is just way too time consuming and that's time I'd rather spend playing something else in my backlog.
But it sure is fun to watch others do it and I'll admit, I've definitely dabbled with glitches and various tricks a lot of these speed runners use within reason. Like the door skipping glitch in the Resident Evil 4 remake that I just wanted to test out which was then immediately patched once I got it down.
