New iMac 2019 + Adobe Bridge cache(?) performance trouble

Hi on my new imac 3,6 GHz 8‑Core Intel Core i9 (retina 5k) + LG UltraFine Display 4k

 , Radeon Pro Vega 48 with 8 GB, 72gb ram, 1TB ssd 

the adobe bridge is too slow it take minutes to see the content and when I leave a folder and open it again it  take again minutes too load the content. I tried adobe cc2019 and adobe cc2020 first on osx mojave and now on osx catalina - still the same problem.

My old mac pro 2013 has not this problem with the same extern ssd. May be a support problem with the graphic card? waiting now 5 months for a patch fix.