Thanks for the feedback! I'll have to do some thinking about how to address this, but it would probably entail me just making some tweaks to the writing to scale back the MC's personality. Introducing personality variables that affect the MC's response to every encounter would be neat, but probably far more cumbersome than I'm willing to get.
My initial intention for the MC was to have them be close to a blank slate (as a self-insert char), with whatever of a personality they have being pretty vanilla. How close I came to that goal is uh... dubious!
If you find other examples where the MC's behavior feels offputting, feel free to let me know! I can't guarantee I'll make any specific changes, but I'll absolutely take a look and see how I might make some improvements!