I have to disagree. the R3 has way better hardware specs to do this. This is just a matter of effort from Canon and this is Canon's ignorance. I'm finding the R3 becoming more irrelevant for the asking price as time moves on.
the stack sensor readout is slower than those in A1 and Z9 higher res cameras, it has less features that matters especially the pre-capture one which makes more sense for a sports camera. there is no hi res mode. For a first time Canon potential buyer, the R3 is the least attractive camera when you factor price and RF lens options. I can see EF users interest with it but new buyers ??? Canon is only sustaining this Stills camera business via its DSLR and lower end MILC. In my opinion, R5 is the flagship camera. R3 is a pointless venture by Canon.