Does the app run slower when your testing it over wifi?

So I made an easy app to see how fast it runs by every time you click the screen you get a point but i click the screen really fast but the game doesnt keep up with the taps. Would it go faster if I was an actual app?

It depends on what browser your using and what you make your finally export

You are better off testing the performance by displaying the CPU usage and a FPS counter.

Also if you test in on mobile, use Chrome. It is based on the Chromium engine and when you export the final app (with Cordova), your game will be packed with the Chromium browser. So testing in Chrome will give you the best picture of how the game runs.