I tailor my encounters to what my players like, not what's going to challenge their dice and IRL luck. If my players are finding themselves having to cheese their build and pick the optimum feats and talents just so they can stand a chance, then I've failed as a DM. If you're cheesing your build because you want to feel powerful, just tell me, and I'll do a campaign where you can feel powerful without needing to cheese your build. You should be able to make the character you want to roleplay as without feeling like you're inadvertently gimping yourself. It's why I like Genesys and Powered by the Apocalypse, because those are RP heavy systems that don't require you to spend ages messing with stats in order to play the character you want to play.