AI 2020 slow
I am working on a 2017 iMac pro with an 18 core Intel Xeon W processor, 128 GB of 2666 MHz DDR4 memory and a Radeon Pro Vega 64 GPU (16 GB memory). I just (November 5, 2019) updated to AI 2020 and everything is significantly slower than the last version of AI 2019 (yes, GPU enhancement settings are on). I purchased AI CS because it had the GPU enhancement and it was 64-bit allowing me to work with the rather large vector images produced during my data analysis from spacecraft. However, this slow down is like going back to AI CS 5. What changed/went wrong in the new AI 2020 that caused such a drastic change in performance? AI 2019 was fast and great but something broke in 2020 making everything (saving, dynamic manipulations, etc.) much slower.