Premiere Pro is extremely laggy and sticky
I finally bit the bullet and upgraded from CS5 for CC's VR capabilities but cut editing regular 1920x1080p 24mbps footage is brutal. It's laggy, slow and unresponsive. Very "sticky" timeline.
I had to go use my other computer with CS5 to do simple cut editing jobs. I'm very disappointed with CC.
windows 10, 64bit
Kevin Monahan commented
For VR, I would recommend a lot more RAM and a GPU with a lot more VRAM. An update for your CPU is also warranted, see this white paper: https://www.pugetsystems.com/labs/articles/Premiere-Pro-CC-2019-CPU-Roundup-Intel-vs-AMD-vs-Mac-1320/
I don't believe it's a Premiere Pro issue. VR requires a huge amount of power. When you updated your software, you also need to update your hardware. You can solve your issue, but it's going to cost some money for a VR hardware upgrade.