Definitely a lot of skill in PVP and not just the twitch based kind (which would be more arcadey as a lot of arcade games typical reward good twitch based play.) There's the skill in equipping your ship for the task at hand (or equipping it for multiple tasks as you'll rarely know what kind of opponent you'll be up against in advance.) During a fight you've got to think about ship positioning, threat detection (especially when not just 1vs1) lining up your shot, maintaining regular targetting of your opponent, defensive measure management, heat management, when to switch targets, knowing if and when to run, how to run and one of the most important is probably pip management. Constantly switching up your pips to maintain a decent combination of weapon power, shield defence and engine power for the occasional boost.
I've seen some people post videos and have commentors on here post about their opposition (or them) being average, but it's easy to shout "switch pips to weapons/keep more range etc" but when you're actually flying and trying to consider and manage all the variables of your ship and your opponent it's a different kettle of fish. Even the best rarely fight "the perfect fight" because there is so much to take into consideration that can change in seconds.