Jlg823 :
I was watching CoeStar and other streamers on YouTube and their game looks a lot smoother than mine and my friends. So I was wondering does it have to do with the Refresh Rate on their monitor? Cause mines only 60hz and one of them is 144hz. So does that make it looks smoother when they look from the left to the right. Don't say it's due to FPS cause I have 230FPS in League of Legends and 324FPS in Minecraft.
A higher refresh rate DOES help. The difference is subtle. An average user may not be able to notice the difference, but the more you are used to the higher refresh rate, the better you will be at noticing the difference. If you move around quickly (like spinning around), you can see a much smoother transition on the monitor with higher refresh rate.
Having said that, a video doesn't fully capture this subtlety. Also, for the more demanding games, the higher refresh rate requires a stronger graphics card. For the games that you're playing, League of Legends and Minecraft, it's not a big deal.