Roblox on mobile is Terrible. It's not optimized for phones and the controls are not that good on mobile the explosions are verry laggy and Roblox in 2017 was so much better. The menus,games,avatars,how the page looked, Everything, and i have very much lag on games that were running quickly in 2017. For example in jailbreak i have 19 fps and i have A galaxy A51 wich at the end of the day is a really decent phone. Thats it.