Spyware Doctor

Of late I was having terrible trouble trying to get a decent connection. Untill a week or so ago I always connected at 46.6 and some times 48 then for some reason I started connecting at 21, 28 and 31 with bytes sent and recieved only in the hundreds. I had to connect and disconnect repeatedly untill enough bytes mounted up to give me a bit of a connection which was always short lived. Then I installed something called Spyware Doctor and low and behold my connections have returned to normal. Is this coincidence or do spy cookies really cause havoc with internet connection?