Good frontend performance comes from mastery. Tools can help you master what you understand, but not what you don't. If you scrolled through your build's bundle output, would you recognise most of the code in it?
I recommend marinating in chrome devtools performance tab. Does the relationship of network requests to when visible or main-thread work happening make sense? Then look at things w/ heavy CPU & network throttling. Is it what you expected?
& Web Standards TL; Blink API OWNER
Named PWAs w/
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