fireball

I have the same situtation.  I used to use bitcomet 0.91 that was very fast but I was stupit to down grade to 0.8.  Then, I find the 8.0 was slow so I changed it back to 0.91...don't know why, it become very slow...mega slow...sometimes, it is dead, even it has lots of peers.  I tried uninstalled it and re-downloaded it, but it is the same slow...please help...os.tvboxnow.com0 p$ L$ v' |2 n: Q& s/ j& l
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Form my experience, it has many seeds but it can't download well.  Very abmornal..I am afraid my computer has problem because it nevers happens before.
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Any suggestion???