I wish firefox was faster but benchmarks are pretty common, it's not hard to test. It's kind of an unfair fight at this point honestly, large swaths of the web are just built for chrome. There are other benchmark options out there, but even using Mozilla's own kraken benchmarking solution, it loses tremendously more than it wins. I honestly really respect them for not building their benchmarking system to make their solutions come out on top.
In some benchmarks the lag from firefox is very significant and then on the other hand, when firefox does win, chrome is usually right behind it. It's not ideal.