On X11 it's either xset r rate 180 35 or a change in xorg.conf, but on wayland it's seems to be bound to the actual compositor, so i found this:
https://docs.qtile.org/en/latest/_modules/libqtile/backend/wayland/inputs.html
there's kb_repeat_rate and kb_repeat_delay, but i didn't found any simple to change those default value from the config.py file, is there any way?

Edit:
Okay by bad it's in the doc https://docs.qtile.org/en/latest/manual/wayland.html
But i don't know why this has no effect

from libqtile.backend.wayland import InputConfig
wl_input_rules = {                                                                                                                                                                        
      "type:keyboard": InputConfig(kb_repeat_rate="10", kb_repeat_delay="10"),
}