Intel AC-7260 Wifi is Slow While Using Bluetooth

Hi,

So I have a Dell Latitude E7240 (Windows 7 Pro x64) with an Intel AC-7260 card, and while the wifi is fine during normal use, if I hook up my bluetooth speaker, the wifi speed is very slow, and seems to load small amounts of data every 10 seconds or so. I updated to the latest drivers on Intel's site, but it still seems to do the same thing. Has anyone else had this issue? What's the best way to fix it?

Thanks,

Anthony