Im running Movies studio 16 platinum
on an Intel Core i5-9600 3.7GHz computer
with 16 GB ram
win 10 Pro 64bit

And starting or pausing the video run, takes too long,
I press the spacebar to stop the video, move the line - press spacebar again and it takes time to start,
Even sometimes it turns the software window black and it says that the software does not respond, for 3 secs..
And then comes back..

Any ideas what can I do to make it work normaly?

Many thanks
Mickey