Based on our investigations after communicating with users, we’ve come to the conclusion that this issue is not related to OS 10.15.x
Closing this thread.
Adobe InDesign team
An error occurred while saving the commentAnonymous commented
yess i'm on a studio with macs, i'm the only pc, but they are not in catalina and the issue is the same, very slow, so me and them are back on CC2019 to keep compatibility now