any idea why BT always drop line

E46

I have Bitcomet 0.70, I have no problem with it, but after I download and run the Spyware Doctor.  My BT drop line like crazy. It always drop to 0 Kb/s for all of them. and the speed is very slow, even the upload speed is much lower than I set. b4 is always top of the limit which is 50 Kb/s. now is only 10 to 20.
, P4 f; n3 K7 a, }# l! k8 W7 MShould I unistall the Spyware Doctor. (I didn't ture it on guard.)tvb now,tvbnow,bttvb+ F0 V8 T; W! V! z6 q0 O( p
Anyone can help, please.