If one chapter gets released every two months, then you'd at least expect 40+ pages per chapter. We're not even getting close to that. I pretty much never criticize a mangaka's or author's release pace since they're already getting worked to the bone, but chapters that are barely over 20 pages for a bimonthly release is kinda taking it too easy. Neither the author (not counting the LN) or the artist is working on another project at the same time (unless they have secret alternate names for hentai like some mangaka do) so I don't know why the release pace is so slow.
You say that, but I did some digging.
Doing a background check the artist just recently moved into a new house literally in the last few weeks
He also simultaneously draws for Japanese-specific social media (some slice of life stuff, many much less lewd than this type of work)
He is also a gaming youtuber and streamer (who is currently no-lifing Apex and eFootball). On average it’s daily content (sometimes he uploads 3x/day though) and gets shit views (228 views is his highest view count) but hes been doing it for years.
His Youtube channel description:
I am a 32 year old NEET who lives his life watching Apex videos while taking antidepressants and watching Apex videos!
I sometimes get nauseous, which may make viewers uncomfortable! Please understand!
I put more time and thought into my Apex videos than anyone else, but I've never been able to improve!
— @saiderblue on Youtube
I’m not happy with the frequency of releases either but clearly they have passions outside of being a mangaka