LiveCycle Designer created interactive forms open significantly slower in Acrobat Pro DC on Windows than they did in Acrobat Pro XI on Windows. Forms that would take 5 - 10 seconds to load in Acrobat Pro XI, now take between 30 - 60 seconds to load in Acrobat Pro DC (2019.021.20061).
A couple additional notes:
- Immediately after Acrobat is launched, the first form that is opened doesn't experience the same delay. It loads about 10 - 20 seconds. However, if that identical form is closed and then opened again, it takes 40 - 50 seconds. When opening a second form, it experiences the longer load time of 40 - 50 seconds. However, after exiting Acrobat and launching it again, the first form to be opened loads in 10 - 20 seconds.
- When loading the identical forms on a Mac (in Acrobat Pro 2019), they load fairly quickly, in about 5 - 10 seconds each. The performance is maintained even when multiple forms are open at the same time.