@therealmask
If you prefer, there is the Portuguese part of the Forum (although the international part has more active users):
https://forum.recalbox.com/category/25/português
You should edit your Recalbox.conf file, as this post says:
https://forum.recalbox.com/topic/22659/recalbox-7-1-vidéo-intro/4
Maybe this helps:
https://recalbox.gitbook.io/documentation/v/portugues/manual-basico/primeiras-nocoes/o-arquivo-recalbox.conf