So I have that new Macbook Pro 15 inch with the Nvidia GPU for 6 months or so, and recently I experienced WiFi slowdown after I let my Macbook on for hours (with putting it to sleep by closing the screen) my WiFi gets waaaay slower. It's not my internet since when I test it with another computer, everything's normal. And when I reboot my Macbook, it also get back to normal download speed.
It just happened one day like 5 days ago when I was trying to do a Twitch stream. Maybe it's something I have installed ? I don't think it comes from OpenBroadcaster ? Or from JackAudio or Soundflower (two packages that simulates virtual sound playback so I can stream what my Macbook outputs, I did uninstall the second but I really don't know how to uninstall JackAudio) ?