Earlier quoted context omitted.
But it's doing Google's game by being based on Blink.
Blink is the de facto web standard like it or not just like linux is for web hosting and both are open source and contributed to by many companies. Firefox is now in 5th place for browser market share and Mozilla is a dumpster fire of a company, imo it is only a matter of time before Firefox switches or completely folds.
Indeed, it's your opinion. Development and benchmark tells another story:
https://arewefastyet.com/win10/benchmarks/overview?numDays=6...
OTOH, Firefox's "perceived slowness" is mostly due to your local DNS response times. On fast DNS, Firefox is at least equal to chrome in terms of speed.