I know I will be hated for my input, but I use Firefox, pay for YouTube Premium, and my load times are fast. My browser choice hasn't caused any slow experiences.
Not that I have to justify my purchase, but it's $25 CAD per month, and I split it between my 5 family members. $5 CAD for ad-free on all my platforms plus YouTube Music, PLUS more money going to creators (as confirmed by Technology Connections on YouTube), I am fine paying a few bucks. Content creators have to get paid, and I hate sitting through ads, so it's a win-win in my books. I also don't want to waste time using third party apps, using DNS adblocking, pihole, etc. just to get a decent experience across my devices.
I'm sure my opinion will be taken very respectfully on Lemmy.