I have comics I do fast, and comics I do so slowly that I make like...one update a year. So I think it...depends on what the comic is for. If it's really just for me, and something more personal to me, I'll spend as long as I want detailing the pages and painting it fully. If it's because I need to make some money off of comics eventually, then I have to start thinking of how to get faster to compete with the crowd. I don't really have much of a choice since our promotion relies on that algorithm and I don't have a huge following in other places.
But--it's like learning those super fast runs on the piano, I don't think you can get faster unless you know how to do it slow. There will always be someone else faster than you, so you have to know where your limit of efficiency is and just...not push that limit or you will lose more quality than what you gain from speed. You have to know where you're comfortable and allow it to be slower than someone else because...that's just how life works. As you work, you'll get faster eventually through practice.
So I agree that twitter puts way too much pressure on speed. They're doing it mostly for algorithms, and even then speed is hardly the only factor. I spent a year where I did and posted art every day, and it got me 30 twitter followers and that was it (meanwhile, on tumblr, I got 500). So the algorithm is busted. We don't need to worship it, it's just a goal we can work towards, and even if you're fast--if you're not hitting that sweet spot and getting it in front of the right people who really want your content, speed won't help. When I realized that, it was like a burden off my shoulders. I post to twitter when I feel like it--it's no longer this horrible obligation.
But especially for webcomics, it used to be standard to do like...a page a week--maybe in color. Nowadays it's almost mandatory to do full color to get attention, and those episodes are the equivalent of 5-6 pages if they're at least 30 panels. And those panels, because they take up the entire width of the phone or page--they're huge! When you do a page format comic you have some panels that are like half an inch wide--phone comics though? No. They're massive, because you have to upload it at like 940 px wide (or 800 px if it's on webtoons) So...we're doing way more work a lot faster than even 10 years ago.
At some point we will have to cap what we can physically do and put our foot down. I don't know when that will be, if it will ever happen, but it does concern me that this push for content has gotten so extreme that it's given artists serious injuries and serious burn out (me included, I have really bad carpal tunnel flares and had to stop drawing for an entire year in physical therapy.)