I'm reaching out to ask if you have any advice on how I can1) stop Vegas Pro 15 from lagging when I'm editing with 4K 24fps files and 2) why won't Vegas take my MOV files?

I have changed my preview to "draft", changed Dynamic RAM Preview max to 0 and my Enable Multi Stream Render is set to TRUE -- it still lags.

Importing MOV files -- I get an error message when I attempt to import them. My solution is to convert ALL of my files to MP4 -- I shouldn't have to do that. I have Vegas Pro 15 on my laptop and never have to convert any video files.

I use an OMEN HP Desktop 875 -- Intel(R) Core(TM) i7-8700 CPU@ 3.2 GHz -- 16 GB RAM and GE Force RTX 2070 SUPER Graphics Card.

Any help you can offer will be greatly appreciated.