Flack

I'm happy with MSI. Had 2 laptops, and MB for my PC from them. Never had any problems. When someone says its slow firmware and driver releasing - thats true, but I can only ASUS is more or less fast. Other companies are slow as well. Even more slow.

Zalman ZM NC-2000, also changed thermal grease, so now my GT683 is cold as Alaska winter.

Logitech MX Anywhere for my laptop. Low DPI, I know, but its ok for me, even for playing CS GO.

In my opinion it is opposite - Matte screen seems crispier, probably because of anti-glare finish.

IMO your CPU is just fine. Modern games rely on GPU mostly, not CPU. With a few exceptions though. Like Starcraft 2.