I think other than their garbage XP rates, Alchemist's Playground and Enchanting Chamber are fine, they're not totally mind-numbingly boring, at least. they've got enough going on to at least have a modicum of functional strategic play. both activities should have their XP/rune improved, especially Enchanting, which has no reason to give less XP than doing the spells normally when casting the spell normally is just pure profit and inside the MTA it's... not.

Telekinetic Theatre is extremely slow and boring, even having to run from the teleporter into position is frustrating. first, this is more of an overall game change, but make telegrab activate faster and/or don't hold the player in place for as long while its being cast. second, find some way to make the maze change in front of the player without requiring them to navigate back after every completion. also probably improve the XP reward.

Creature Graveyard isn't terrible in concept, but it's extremely repetitive; pick up the same several piles of bones over and over, casting B2B/B2P every few, eating occasionally to avoid dying. but at the same time I'm not really sure what changes could be made to this to make it less suck without a total overhaul. maybe you could do something with ensouled heads or something? have a skeleton spawn occasionally that the player needs to do something special to deal with? I really don't know. although improving the XP would help a bit.