Thank you !
I used a realistic run speed, but it's true it can seem slow compared to more dynamic FPSs.
Concerning the lack of mouse support, it was not intentional. I didn't use any pre-existing template, I made the controller myself before with another project. At that time I focused on commands with gamepads and on-screen for phones or tablets. I tried to add mouse support for this game, but I started really late (5 days too late), and I couldn't make anything usable so I dropped it. I'll definitely work on this for next time.