well i love LimeWire
it was pretty fast with me (always +10kb/s)
but now it only goes like 0-2kb/s

it was working right like 2 weeks ago but it doesn't work now
how can i fix this?

You need to provide more info but maybe check here first:

http://www.gnutellaforums.com/connec...e-posting.html

and if that doesn't help then try to think of changes you may have made prior to the speeds going down. And also:

http://www.gnutellaforums.com/connec...-you-post.html

512mb rab
768kbps (lol but it is one of the fastest here in my country)
Limewire 4.17.6 PRO
Java 1.6.0_01
My provider is Cable & Wireless (Panama)

The rest as well