As I see from the figure, there is only a very small change in the y-axis (that is only after the 10th place after the decimal point). So if you want to decrease the values seen in the scope, you may obtain only a line. Now in order to increase the range of values displayed on the scope, you can right-click on the scope, and navigate to 'Configuration Properties'. Here you can specify the Minimum and Maximum Y-Limits.
But regarding your problem, I highly doubt that this will affect your runtime.
