Rekordbox not responding!

Since upgrading to 6.7.0 Rekordbox is extremely slow to load tracks (20 seconds it all freezes)and I keep getting a white screen/Rekordbox (not responding)  this doesnt seem to be exclusive to loading tracks either.    Its driving me nuts to the extent I havent used my set up for the last couple of weeks as its too annoying..  

I have of course disables Track separation but issue is the same.  Have upgraded my RAM by adding another 16gb card (was 4GB) .. purchased a 2TB SSD to put all my tracks externally so free's up the HD.  Still the same issue.  I am in touch with Pioneer who despite being responsive don`t sem to have a fix as yet.  really am losing the will and have already started to consider other platforms..