I am not sure you are going to notice much of anything unless your are already noticing something that should not be there. Most well engineered products have the proper amount of stuffing etc. factored into the design.
If you want to try it go ahead, I don’t think there is any harm in doing so. Simply save whatever you remove so you can put it back if needed.
Would you be taking any measurements before/after to help confirm a net positive change?