Hi, in general vrayRT gpu mode needs a lot of work in many areas to be more stable/compatible with all cpu features.
Idk what chaosgroup believes about gpu rendering, but seems like something people are investing on already.
And specifically a technical thing that i believe will help in terms of navigating around fast and easy with rt is gpu priority mode as it is in octane. I cant use all my gpus for look development real time i have to close and re open the window everytime i want a speed boost. Real time checking and unchecking which devices rt will use and how much% of em would be great!