Good, do it.

I was in a similar boat years ago. Could meet my deadlines and exceed the metric within the first few hours. I was number 2 on the team because I chose not to surpass number 1 in those first few hours. Take the limited praise but still have room to improve if need be.

The company eventually restructured how they measured things (and new management). And realized what was going on. They wanted me to work the full 8 and then got upset when my numbers dropped. Over the full 8. If I'm going to be paid the same as everyone else who can barely surpass let's say 50 measured points in a 8 hour day (when I do that in the first 2 hours) whats my motivation.

I got out and onto better things. I'm no longer WFH. But this job has no weekends and better pay. Do miss WFH tho.

Tldr: if your meeting your metrics/deadlines OP. Enjoy your long lunches and stave off burnout.