Unless you are on really lite speed, it isn't very nice using Limewire and not sharing anything.

If your speed is 512/128 or above and you are using windows, this patch should help you get better access to the internet while using Limewire

Evid patch

I haven't tried it at lower speeds, but it probably works also at lower speeds

If you are really set on not sharing, because your speed is lower than that, you can set upload slots to zero, but I really wish that you would try this first, and then play around a little with the upload/download sliders.

Also pages loading slowly often is caused by slow downloading not uploading, so I'm not sure that not sharing will help at all

It is much more likely that the patch will help