No message getting but can't browse mobile smoothly.network very sloww...!!how can get more speed?

I setup my router with OpenDns 208.67.222 222,208.67.220.220..but after 7 days running I can't speed up my wifi.i can't understand what you described.i have no computer.set up router with my mobile.1/2later I notify 3rd party follow you and blocked....