Thank you for your feedback. Unfortunately, there's not much I can do to optimize the mobile version of the game. It's a direct conversion from the Windows version, so some features may not be perfectly suited for Android ^w^.
Viewing post in From where you live v0.8.1 (vore game) comments
I understand that just i have seen other games on this engine have the option to hide the ui on windows and mobile versions as it has seemed to be a feature the renpy ui can have that i think would improve the experience as the ui and characters overlap especially for any who prefer to us there phone. I know the game ravager has the hide button in the same line as the back skip and menu options and until i played a few more renpy games i thought that was standard. I understand it isn't a priority was just a idea i had from previous experience.
Best wishes and thanks for the game so far looking forward to the next release