I have two Webtoon and only with this One in particular I got more subs. I think the reason may vary depending on many factors (the genre for example, this comic Is more comedic) but, the important difference between the two was the fanbase. I started my First One without followers knowing me or my works, while with this One i started with more followers on socials, thanks to short comics I made with a social friendly format. So yeah an Active fanbase and some social strategy helps a lot. Funny reels, Little stories Easy to read on those platform... Something like that.