A7000 2.4ghz speed running slow

[bilb]

I have just increased my provider internet speed to 100 mps, and when running a standard speed test, I notice that my 2.4 ghz is running at about 46 mps while 5 ghz is close to 100 mps. I selected several channels to determine the best speed, and it seems like channel 10 is best for 2.4 ghz. No problem with 5 ghz or ethernet. I know there must be other traffic but is this normal or is there something I am missing in my settings?  Seems a bit extreme. I have the latest Firmware Version
V1.0.11.106_10.2.100  

Thanks