Left clicking not working well during gaming for some reason. Why?

I just got a new laptop for christmas and everything is great except the fact that when I try to play games, left clicking doesn't work well. I have to click 4-5 times for it to work. But it works normally when browsing menus, or normally doing things on my computer (like browsing the interwebs).

The computer came with Windows 8.1-64 bit. This is really getting my nerves. I've tried Minecraft, DC Universe online, Left 4 dead 2, and A fan game called Sonic GDK.
I just want to left click in peace x(
And suggestions?

My laptop's mouse is quite unresponsive when it comes to gaming, I don't exactly know why, but the best solution is to get a portable wireless mouse, You'll need a portable mouse, just connect it to your laptop via bluetooth and play!

NOTE: I don't think there's any solution rather than buying a portable mouse because it is not the problem of the laptop.

y u play wit no mouse ha?

If your using the button on the Laptop itself, there simply not as sensitive as ones fitted to normal Mice.