Hello,
I am also experiencing this sluggishness issue periodically. The cursor and refresh rate sometimes come to a crawl. I sometimes have to quit the Multiplicity application and restart it to clear up the issue. On occasion M4 will just completely freeze up requiring a Force-Quit. Also, occasionally it will crash and just disappear requiring me to restart the application. Something is definitely bogging it down occasionally. At this point M3 is far more stable. I'll wait for the next beta release of M4 and see if any progress is made on this issue, but if this continues I'll need to uninstall M4 and reinstall M3 on all the computers.
Just an observation, based on reading previous comments; Internet traffic isn't the issue (unless the traffic is generated by M4 itself) as my setup has not changed except upgrading from M3 to M4. M3 runs almost perfectly with only the rare issue here and there. M4, has far more issues and far more often(as to be expected given it is beta) (e.g. disconnections, sluggish performance/screen updates, sluggish mouse, unresponsive UI at times, crashing and disappearing mouse cursor when entering the remote screen window(even the title bar), drag and drop copying of files not working at all (must still use copy/paste method) are the main issues). M3 rarely drops a connection, whereas M4, although fairly stable at times, goes through periods where it can't hold a connection and will keep reconnecting and disconnecting. The only solution to that is to quit the application and reload it.
The disappearing mouse cursor is very annoying as well. Often when my mouse cursor (on the primary computer) enters the secondary computers screen the mouse cursor will disappear. This happens even when entering the title bar of the window which is strange. The only way to get the mouse cursor back is to move the mouse until it exits the secondary computer screen window completely and try again. Sometimes I have to repeat this pattern (entering window, exiting window with mouse cursor) to get the mouse cursor to stick and be visible while inside the secondary computer screen window.
Thank you.
Sincerely,
Ivan Thomson