It sounds like OP is getting on the verge of the brutal honesty and part of that is acknowledging the actual assigned work makes them miserable. That's fine, and if you can't be moved to a better fitting role then it's time to go.
Another alternative approach is to not care about your work reviews, as long as you're not getting fired, and look for your growth outside your 9-5 job. For the 9-5 think of it as just a tool to pay the bills while you do what you want to do. Performing at around the halfway mark compared to the rest of the team is good enough to not get fired. Use your new-found time, mental energy, etc. to focus on whatever personal or professional goals you want. That's how I started my business and it's going great.