It was intentionally meant to be that way.
Some renders are best seen vertically, just turn your mobile 90° to see the scene as it should be.
If you have a sex scene that occurs vertically, just use the same mechanics of rotating your mobile 90º.
Did you have problems with RAM use in your mobile? Or did you mean disk space?
We optimize the game to run smoothly on mobiles, with low use of RAM.
If you have referred to disk space, there is not much what can be done, as the game has plenty of content.