Faster Wi-Fi Matters: 50-60% Faster Speeds Without Outside Plant Investments

The gap between Ethernet and Wi-Fi performance inside homes and offices affects speed tests that generally are taken by mobile or untethered devices. In other words, the measured device-delivered speeds--typically measured on a Wi-Fi-connected device--are between 30 percent and 40 percent of the actual capacity delivered to the location by the internet service provider. 

source: Ookla 

So improving indoor Wi-Fi performance could, theoretically, boost an ISP’s speed performance by huge margins, perhaps in the range of 50 percent to 60 percent, without making any additional changes to the outside plant.