ruckus is running slow

[sumitrangdal]

I got Ruckus switch ICX7150-C12 Switch and 2 access points. The internet is running slow when access the internet through ruckus access points where as accessing the internet directly from ISP is faster. When I checked for internet speed test on my phone then that also shows slow internet speed on the device where as ISP shows good internet speed. Can you please help to resolve the issue with slow internet?