People must understand one thing.Asking to add more routes in the game,will inevitable lead to slowing the game a lot.Of course if you have 4 paths,and not just 2,it will take much more time to make some significant progress.But I continue to see same people asking for more routes in games and after just 3-4 months start to complain that the game is too slow,the dev is milking etc.
Games with more routes usualy are done in 4 ways.
1.An update for route A,then route B,route C etc. and repeat.It can be not in same order of course
2.Some small content for each route
3.Circling between number 1 and 2.
4.Let the patrons to vote which path or girls should be worked on.
The 4-th is the one that almost always lead to game been either abandoned or "finished" way earlier than the initial idea.
I have saw complains about the other 3 too.
Especially for first/you can wait even years for your girl to finally get some content/ and second/there is barely any progress/.