[ta20200710]

Right, that's how I get my work done so fast. Sure I could "be superbly valuable" but there doesn't seem to be any motivation to do so. The stick (a PIP) isn't going to hit me because I'm above average, and the carrot (additional compensation) is inevitable because I'm already a shoe-in for promotion as the top achiever on the team.

[karmakaze]

The real problem here might be that you're not actually interested in your project/work. Given all what you've said, if I was still interested in my work, or found a way to make it interesting I would still go as fast as I can sustain. The environment and speed-bump obstacles can be demotivating if you don't find a way to block them out. Given the 'extra' time that you seem to have let's you solve problems in a round-about interesting way. Even if something starts out as a Rube Goldberg contraption it might lead to something else.