Svhost High Usage!

I thank you guys, Norton as providing me your nice internet security! I have one problem, not really a Norton problem because your product is amazing ! Norton says I have a high usage on SvHost? Now it does slow down my pc a bit and lags some. I have a new Toshiba laptop that i reset to factory defaults. Nothing wrong from it before either. I have my Toshiba model number as Toshiba C55D-A5392, its  laptop. If you have any answers than thank you! Its both memory usage and disk usage wise.