I'd have to be on the full site, which takes quite some time to load, and requires zooming to read anything. If the mobile site allowed foruming, things would be much more convenient.
For the zooming in to read thing
A. Not that hard
B. really depends on what device you have
C. You'd probably have to zoom a bit on the roblox mobile anyway.
And every device I have used does not require much loading time.