1. Doesn't sound healthy. Did you configure your firewall so it allows LW full access (advisable not to have 2 active firewalls b/c they can interfere with each other);
Firewall configuration instructions (click on link)
Do this test:
Bug Report instructions & sample image Is the result True/False?
2. Nobody can expect to connect to all those found in the search results. For a start, many won't have available upload slots & some will be very difficult to connect to for whatever reason. See the following link & follow all the off-shoot links to find hints & extra skills to help solve your problem:
To continue files downlding (click on link)
3. Remember that isp's quote their speed in mbps or kbps (mega bits per second.) Whereas LW specifies its speed in KB/s or (Kilo bytes per second.) There's 8 bits in a byte so, your 8 mb is really equivalent to 1 MB minus overhead loss (such as how far you are from the phone exchange.) Probably about 800 KB/s. Why you get smaller downld speeds will depend on the sources!!! How much upld bandwidth they have available, etc. Not everybody has fast connections & uploading tends to be much less than downlding speeds.