Do the games allow you to limit the P2P upload speed? The only problem you could have with Plusnet is if the upload swamps the line and stops the acknowledgements for download packets getting through. Otherwise the P2P download will be slowed as you use other higher priority traffic.

In reply to a post by jelv:

Do the games allow you to limit the P2P upload speed? The only problem you could have with Plusnet is if the upload swamps the line and stops the acknowledgements for download packets getting through.

I don't think that's anything to do with Plusnet, it's the same with any ISP except they risk wrecking the game. That's why people often need limit the number of P2P streams themselves to make other stuff work at all decently in both directions.

The user limiting the number of streams/seeds definitely slows the P2P downloads, and often wastes throughput capacity of the line.