Does choosing proper dataype will improve the performance?
<p>I'm ASP.NET Developer, my job is writing custom web app pages and hosting them on IIS for people in my company to use (midsize company, about 200 persons). </p>

<p>Most of my web app having about 50-100 variables each. For numerical data-type, I only use int (for natural number) and double (for floating-point number). I wonder if I keep on doing that, the performance will be <strong>really much slower</strong> than it would be if I choose the data-type more properly (byte, sbyte, short, float, etc).  If yes, how big is it?</p>
