In my area i can detect 41 different AP, almost every channels are in use and there is no way to avoid channel overlapping. i try to choose the standard channels (1,6,11) and keep having slow internet at high usage hours (8am - 1am). I've changed the ch to 13 and start to get a better performance and speed.
So why is this happening, is my router broken, is the high number of devices in channels 1,611 that slows down my speed. or something else?