You just get used to it. It becomes second nature, just like the rotation itself. I found it frustrating while leveling, because every time I got a new rotation skill, I had to retrain myself when I'd just started getting used to it. But after a while at 50, it's just part of the rhythm. I enjoy it now. Other classes feel a bit slow and static (I'm working on BRD as my second DPS class now because at least if my fingers get bored I can randomly run around a bit).