Been playing classic pretty casually since it's release, recently returned to retail to unlock the new Allied Races and oh my god...
Even compared to ancient Vanilla, the combat of retail feels like pure dogshit. Every battle is an absolute drag compared to even Legion.
The combat before BfA was so fluid, and was one of the core reasons I kept subbed even during the downtimes but it's not fun anymore, the combat doesn't feel fluid but instead is slow and janky.
Really hoping they revert the added GCD's in Shadowlands.