Nah, Succ Lahn is super chill. F, S+F, RMB+LMB, RMB, repeat.
Yeah, there's pre-buffs, but that's every class (15 second Q buff, 8? second A/D+RMB). I preferred when the attack speed buff was A/D+LMB instead of Q, which is what I think makes her feel clunkier. But it's still not much.
Here are...