Rekordbox Anaylizing

Is anyone else experiencing the lagging and freezing when analysing tracks in Rekordbox 6.
Although laptop spec is pretty high and it's analysing tracks 16 at a time as it gets towards the end of analysing a track it pauses for upto 30 secs per track leaving me unable to use the software till it has finished.

This isn't the case in RB5, I've tried to go via support but I seem to be going in circles with them.