My only wish is that someone with deep technical prowess could explain to me why the Gutenberg back-end Editor is so slow. And, enlighten me as to why the core WordPress team aren’t doing much about it.
Riad's writeup here may be interesting to you on the “why it's slow” part: https://riad.blog/2020/02/14/a-journey-towards-a-performant-... I don't think it's fair to say the core team isn't doing much to improve or prevent degrading performance — they performance-test every PR: https://developer.wordpress.org/block-editor/contributors/co... There's also a performance team (for general WP performance, but also coverin…
Rant incoming...
I would love to be involved with the performance team (it's what i've done for 15 years), but the problem of funding open source comes up. Key members of the team are Google employees and therefore paid to work on it. I by contrast am a solo developer with responsibilities, and every hour I would spend on the performance team is one that I can't spend on earning money or with my loved ones.
And in the end who benefits from the performance team? Every business who needs better performance. Automattic for not having to fund the work. The incentives don't align.
I say this having written a plugin that speeds up WordPress AJAX requests by 30-95% (dependent on the request). I'd love to open source it and it'd be an ideal contribution to WP... but it's taken a year to get this far and there's more to come