Remove the numbers(Frame Rates) in windows phone emulator

Step 1: find the app.xaml.cs

step 2: find the following lines of code

// Show graphics profiling information while debugging.
if (System.Diagnostics.Debugger.IsAttached)
    // Display the current frame rate counters.
    Application.Current.Host.Settings.EnableFrameRateCounter = true;

    // other codeā€¦

Step 3: In the above code change to the frame rate counter to false you are done.

hope your problem is solved.