Viking pro 10 tablet super slow

Its so supper slow it takes me hour half to write a sentence on a forum also says I'm running out of space tried factory reset lost lot of pics did not help also got a lot of spam in my mail also on a BLU phone got popup ads on everything cant even make phone call pops up before I can get to key board prevents number click option also I have a SD card nothing goes to it if I could put apps on it would save space how do I force move to SD?