No it’s not that, I don’t know what happened but ever since a fuse blew in my house it’s been strange. I think it’s the Radeon app causing problems now. I tried to watch Netflix on edge and no that won’t work. I get audio but not video I hate PCs sometimesI know that “tone map HDR using pixel shaders”, can raise render times alot, if you were using HDR pass through before. Just guessing. You must have changed something. madVR is very difficult and touchy to dial in until you have a feeling which options are GPU intensive. It has taken me a lot of time to rap my head around all this (lol). Every time you change settings it's a must to test and be prepared to back track when render times become too high. That's why I would suggest buying the best GPU you can for madVR. I'm looking forward to a 3080 someday.