painter 2019 hangs when open, save, save as are called on the file menue

The hang is from 10 to 20 seconds. Greatly slows things down. This is disappointing because Painter 2019 was advertised as much faster than P 2018. I am going back to using P 2018 until this is resolved as it is making P 2019 almost unusable. Running on late 2013 Mac Pro, Mojave 10.14.1. Please resolve asap, thanks.