Same issue? You were firewalled and unable to connect. Then firewalled but able to connect. You made no mention of download speeds prior to your last post.

Do you share files?

Keep in mind not everybody has a fast internet connection particularly for uploads. Download speeds depends on the upload capacities and upload bandwidth the uploader has remaining.

There's still some people in the world using dial-up connections which means downloading from them at speeds ranging from 0.1 to 5 KB/s. Some satellite and other wireless types of connections whilst offering ok download speeds for the host have abysmal upload capacities not much better than dial-up.

Some hosts might be uploading to anywhere between three to 25+ hosts and their bandwidth divided unequally between them. Their upload speeds will also fluctuate for varying reasons.

If your WireShare is firewalled then it will mean your WireShare will not be receiving UDP messages.

Search and download speeds can be hampered by firewalling. Relying on TCP connections for most communications will mean a lot more overhead as TCP is not the ideal communication protocol.

An example of something different: the speeds between USB-2 which in theory has a speed of 480 mb/s versus the now obsolete FireWire 400. FireWire was actually faster due to USB-2's heavy overhead, in practice somewhere between 15-35+% overhead loss of speed which means it falls lower than FireWire (30-40 MB/s versus about 50.) Sounds like a strange comparison right!? Actually not so strange because TCP also has an overhead and is a notably slower process than UDP. As a general rule, TCP requires a greater amount of communications traffic for the same result as UDP (which has far less overhead and has a faster communication protocol overall.)