When using synergy with a standard DPI server and a High DPI client the mouse is extremely sluggish. When using a mouse connected directly to the client machine the speed of the pointer is normal. Changing the pointer speed on the client has no effect. Changing on the server does but makes the mouse much too fast on the server machine.

My guess is the mouse deltas are not being adjusted for DPI.

This is on both windows client and server (windows 8.1)