Cutting down on performance of Bitcomet

Hello everyone!

 I have some troubles in browsing the Internet and downloading torrent at the same time. I did limited upload/download speed but Bitcomet still took up to much bandwidth for other connecting tasks (Firefox or antivirus update). So, what should I do to improve the connection for other programs while using Bitcomet?

 Thank you for any helps!

All my other Internet applications either slow down or say they can’t connect when I use BitComet. What’s going on and how can I fix this?

When BitComet is running my router/modem reboots itself or freezes. Why is this happening and what can I do to fix this?