Copy to clipboard slow

copying to clipboard is slow , rhino5 takes less than a second v6 takes 10-20 seconds no matter what object

Mine does not act as you describe.
I’ve tried files on my local C:\ drive, on Google drive, and on a network drive; files big and small.

Please describe your scenario.

well must have been a system problem strange , but now it is working ok

Oh, but it does happen!
Here it is , 15 seconds for a simple polysurface.