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.
1 R: M7 H4 \1 p+ r; a8 [/ rShould I unistall the Spyware Doctor. (I didn't ture it on guard.)
  F6 X4 c9 |4 g: W8 `7 i8 ?" gAnyone can help, please.