Help Weird problems with Nexus 10 please help...

[severage]

OK, when I perform the antutu benchmark test, and latest version., Ltd scores change rapidly. I first I got 12300, then 5700, then 9000, then 13000, my device just changed performance so much. I was thinking of doing a system restore. Live wallpapers also drastically case massive lag when using swiftkey. I am jus getting so annoyed. Please help

 

[tanware]

I just did 4 consecutive runs all high 13,600's or 13,700s. this is with the charger attatched. Are all the scores taking a hit?

 

[severage]

I just did 4 consecutive runs all high 13,600's or 13,700s. this is with the charger attatched. Are all the scores taking a hit?

I did a full factory reset and when I tested it subsequently, it got scores that were always in the low to mid 13000s, so I think it is doing good for now