Questiin. How many shots do you need at those events?What is the max write speed of the R5 sd slot?
I use Lexar 2000x cards for full size jpegs and can hit buffer in electronic shutter.
I never hit buffer with the CFExpress slot.
Can the camera actually make use of a faster card?
At events when I need the silent shutter, I have to turn jpeg size down one notch not to hit buffer.