Redstone Clock gets "overpowered"

Hey guys, first iam not so good in english, sorry for that q:

I just wanted to report the folloing annoying bug:
I have a Adventuremap, the Problem it is to big to load all Chunks.
I have several normal redstone Clock there, but they get everytime "overpowered" if you tp away, leave, and tp there again so they dont work anymore.

Yeaa that was it