25 fps, only lens IS, lens Canon RF 400 2.8 IS (rented). I don't use EIS as I'm RAW only other than when I need 120fps that I need to use 10bit log.  On long lenses 70-200, 100-500 and 400 in my experience IS works better than IS+IBIS, and as you cannot turn off IBIS and keep IS on the R5 I always use the R5c for long lens work especially handled.