Slow and Painful
I am running a HP Omen 870-210, 7th generation i3-7100, 8 gb ddr4, 1 tb drive, AMD Radeon X 460.I have used premiere pro 2018 to do some very large projects. While the system did get bogged down from time to time, over all it worked really well. Updated to 2019 and, what a disaster.
Simply masking out a still image. Click wait a minute or two then can click again. It freezes up for long periods Try going back to 2018 and 17 but same issue follows. Though it might be something on my system, even though I did not make any changes during the time I was using to updating. But on the off chance I wiped the whole system, reinstalled, updated drivers, then installed premiere pro again, still same problem.