Adobe Acrobat DC is virtually unusable on an iMac. The scrolling is unacceptably slow and cannot keep up. This is an issue that has been going on for ages. I have resorted to using Acrobat reader on a parallels virtual machine, where it is much faster.

Simply scrolling forwards and backwards uses up to 100% of the CPU and no graphics acceleration.

Why the **** don't you fix it Adobe? It's a disgrace.