gasoline

Ran across this in my feed. I don't see a lot of Mazdas in these videos.

The owner's manual calls for gasoline with an octane rating of 87 or higher. The engine (1.5L) has a pretty high static compression ratio of 10:1. I'm wondering if using a higher octane gas would provide a boost in performance/fuel economy, or be better on the engine in general? I know that...