Disclosure: I am an end user not a pro-user or programmer.
I don’t know what machine you are on or if you are keeping Mojave OS because it can also handle 32bit programs.
I am running Scrivener 3.3.1 on Ventura 13.3.1 - using my 2019 MacBook Air with an i5 1.1GHz Intel chip & 16gb ram.
I can’t seem to replicate that problem. But I do sympathize with accent marks being so difficult to use fluidly.
Based on my experiments with the afore mentioned Intel i5 MacBook Air and on my Mac Studio with an M1 Max Chip I notice that the studio lets me use easier hot key strokes than the intel Air but I can not replicate your problem.
So, the variable here seems to be either the Mojave OS or Scrivener version you are using now. Is it update 3.3.1? If so maybe you should post this in: The Crashers for Copies (or Even Cash) Thread.
My sample phrase was: ~ The façade of the café looks frêle.
Good Luck