Are you on Mac? If yes, it's not a feeling, it's a real problem Mozilla is trying to address but have yet to crack. Firefox is an order of magnitude more performant on windows and linux.
I've been on Chrome for a long time, tried to switch to FF when Quantum came out and couldn't hear myself think over the sound of my laptop winding up.
Once you realize that not being evil isn't a priority at Google anymore this explanation actually makes some sense.