Have a look at the top left side of the Connections page... is your status leaf or ultrapeer? If you're a leaf, you'll see 3 (LW basic) or 5 (LW Pro) ultrapeers that you are connecting to. These ultrapeers have fast connections & can handle a lot of connections from other computers (for searching etc).

If your status is an ultrapeer, you'll be connected to lots of leafs & peers (other ultrapeers are called peers if you're also an ultrapeer). These connections will change around, eventually most of the 'outgoing' will be replaced by 'incoming'.

Ultrapeers see lots of action on the connections page but don't have as many people uploading from them. Leafs see way fewer connections, but more upload traffic. Both are helping the network.

It's nothing sinister