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Same issues here - or at least somewhat relating.

Macbook pro 2015 - intense CPU & therefore battery usage (lots of heat!) from control agent service/task when operating a remote access PC.

Even when un-focused the usage remains maximum.

Eventually crashes most of the time too.

Only thing that helps is manually clicking to minimise - just unfocusing is not enough to drop resources.

Still though, all usage is far too high. Logmein never used to do this.