Nexus 7 running slow

[Lawbags]

My Nexus 7 is running really slowly amd sometimes Firefox crashes when I open another tab.

Any ideas? If it was a PC, Id run a scan. Can you do such a tbing on a tablet?

[Lawbags]

I only had a couple of apps on it. 2 games and some battery saver thing.
I've done a factory reset and its running as it did when new

Cheers guys.