The thing is that we have lots of scenes, showing our character close up interacting.
If he is always silent... it looks kinda idiotic.
Really hope that this does not come to pass.
This is easy to solve. Just reduce protagonist screentime by ~90%. It's only awkward because of awkward camerawork.
Especially since our character tends to show his feelings. What are we? Link?

That's another problem - custom protagonists showing emotional responses that are
very theatrical and overacted, as well as completely unfitting (depending on the character - like squeamish drow).