Premiere Pro 2019 - slow to respond

Since updating to PP 2019 playback has been a joke. On the lowest quality setting and highest RAM settings the clips (in sequence & source window) play for 2 seconds, audio ceases, stutters and stops. Now this project worked fine the day prior in 2018, best quality settings, no stuttering etc at all. I have tried creating a new project within PP 2019, with the same results...surely this cant be right? I understand there can be bugs etc, but this is more than the occasional hiccup. Truy
Any advice? Switch to Resolve? Try a new career?
Cheers
