First of all,what version are you running?

I will Give you my configuration for LimewirePRO 4.16.4

Under Uploads Basic I have bandwidth set to MAX Under SLOTS and Uploads Per Person I have it set to 3 and Max Upload slots set to 12

Now go to ADVANCED and then PREFERENCING and set the allow freeloaders set to RARELY and set the Shared not to be a freeloader to 100

I am currently sharing 3,907 files....so I don't think asking for no freeloaders is a bad thing. Especially just 100 files to be shared.

Whether you have CHAT on or off is up to you,however note that whenever someone does browse,it slows both your upload and download speed down,although they still will not be able to download more than 3 files at a time and they about 90% of the time have 100 or more files they are sharing.