I am editing a Skype video which I applied some denoising to my machine struggles in playback as a result. The original format, which was acquired via Vegas capture is MP4 and about five gigs. I stitched in audio as wav, which I had recorded separately. I figured to use Apple Pro Res as an intermediate format and the resulting file will be about a hundred gigs. That size is a little unwieldy for me. Can anyone suggest an alternative intermediary format that is a bit more efficient? By the way, in DaVinci Resolve, you can apparently apply the denoising effect, adjust to preference and then turn it off until render (if it slows playback, something Vegas might also consider doing, or can I go into the "Video Event FX and uncheck that box until render time?").