Tutorial [Q] Fujitsu f-02e custom room

I have just purchased this phone. I'm aware its not that popular so theres not much support. After research I've found a way to root the phone. But there is no news about installing a custom rom.

Is it possible to use any other custom rom for other devices?

I really want to change apps on this phone and speed it up. I notice tiny lags when typing etc and alot of jap apps i dont need but will mess the phone up if uninstalled.

Thank you for your time.