There's a give and take for both options- generally speaking, shorter, more frequent updates will be better for visibility but may harm the reading experience some (less content can be less satisfying to read, and there's more chance to end at an awkward spot)
Where as updates that are a little longer (maybe like 3-5 pages or so, maybe more?) But less frequent can be more satisfying to consume per update but your visibility suffers.
Deciding which option to go with is hard. From the little bit of experience that I have + observation, my gut tells me that going with shorter more frequent updates is good if your comic has a certain amount of "wow factor" where you can consistently hook and draw people in even with shorter updates. Whether it be due to your comic having a snappy enough pace that something interesting is happening every few pages, or maybe it's just visually stunning or interesting, etc. Basically if you can still wow people at that pace, the hit to the overall reading experience is probably worth it.
Buuuut if your comic moves at a slower pace or requires more context to build up to the big moments, it may very well be worth actually doing fewer but more substantial updates. The added visibility won't help very much if each individual page isn't actually enticing people to read and subscribe. This goes double at the beginning- I'm a fan of comics that at least have a lot of pages launched up front even if they slow down afterwards because it's really hard to judge if I'll like a comic when clicking to it the first time if there's just a single page available. If that page isn't stellar I'm probably not gonna sub lol. This issue goes away regardless once you're several updates in, but first impressions count!
Lastly I'll share the "3rd" option that I'm going to try out with my next comic that I'm working on this year- "front load the work and have weekly long updates". The best of both worlds, with the downside being the long stretch of off time while I'm away working on the comic lol. After doing the 1 page a week thing for a year, I grew to despise that workflow... i was bad at maintaining buffer and thus under a lot of unnecessary stress all the time. This way i can work at my pace & have long weekly updates
they... just won't be starting for a long time
dunno if it'll pay off, but giving it a try anyways~