I've been having 90 seconds long wait times when opening VP17 projects and when I zoom out on the timeline it just freezes for multiple minutes.
I finally found something that might have worked for me, I disabled "thumbnails to show video events" under the video tab in the settings. Now my project loads in 5 seconds, this wasn't a problem with VP16 so I assume this is a bug.
I hope Magix can solve this by the next version.
Just for reference
My pc: 3900x, 2080ti, Samsung m.2 970 evo.
Files: 2560x1440 60p 50 mbps
Settings: The stuff that can be set to gpu acc, is enabled. 4096mb dynamic ram.
Preview window: preview full