the Quickening Tree is a cool idea, difficult to qualify to enter the tree etc.

The problem is that Greater Claw Bugs now give speed increases.

Plus the artifact found within (the boots of great speed) are completely useless, since they both doom, and corrupt.

Secondly the time elapsed is now more dangerous as it adds to background corruption. if you look at the wins in the HoF hardly any people have visited the tree because it is simply not useful.

Suggestion is you upgrade the boots to remove the doomed/corruption and add another downside if required (maybe bad luck)