If you're really interested in FPS performance and not just the brand, choose for the ergonomics first, it's not possible to recommend anything without knowing your play style, hand size etc. The shape and weight you like, and complementary feet and mat with the exact static/dynamic friction you need. Then check if the internals are good enough (they likely are) and whether there are any firmware issues like extra jitter on flicks or unavoidable debounce lag, then look at the required software. There's a ton of mice with excellent performance that are configurable without ANY software.