I'm running CHS 2.13.01, but this problem has troubled me for years.
I usually have at least one Remote Desktop session to another computer running. We are running RD V 6.1.7600 at our company. The target machines are either Win XP or Win 7.
What happens is that the RD process (mstsc.exe) starts using a lot of CPU power on my machine (around 20% in ProcessExplorer on a dual core). CHS is start using around 2-3% of CPU power.
CHS becomes unresponsive at this point. If I kill CHS, mstsc goes back to normal CPU usage. If I kill mstsc, CHS becomes reponsive again. Usually I would not want to kill either process
As I call myself a professional software developer, I think I could handle any instructions to attach to the various processes, and would gladly provide any in-depth information on the topic.