I can't provide feedback on the RVX yet but Prime has been under IBO for since at least the Inline (2022) for some reason. My Inline 3 is actually slower than my Rize which was a surprise as it has a shorter brace. I don't stress speed much but it should be closer to IBO and with a shorter brace it should definitely be faster than my Rize. I thought that the Revex and RVX would be faster since each cam is optimized for each draw length but that doesn't seem to be the case.
The reason to get a Prime IMHO is that mine has been so easy to tune, zero issues, shoot great and you get FREE strings and cables every 2 years. And they're a great company. The nano grip is legit too for cold weather.
The free strings is a big deal to me as it allows me to hold onto a bow for a long time, even as a backup.