It doesn't affect performance at all so far. I've never used Android to play, but I'll test it there to see how it works. If there are problems with it there, I'll reconsider or make it optional / a separate android version.
**I just checked, and it would actually be extremely easy for me to disable. So, yes, be assured that it'll be optional for Android users if it's annoying to use.
And as another matter now that you mention it, actually - how popular is Android for playing RPGM games? If it's big enough, I could really investigate and try to streamline the experience for it.