It seems that this issue comes from the Unreal Engine 4 toolkit for developing PUBG and Fortnite. Yes, we all know that it's better to play games at high frame rates. Because they help to spread more smoothly, smoother and better response time to situations. But gamers have discovered that the benefits of playing Fortnite and PUBG with high fps are much more than that: Better performance means you can "release" faster than the opponent. In fact, this question has a long history and has been verified by the community over the past few months. From the topic of Fortnite discussion: Save the Test on Reddit, PUBG's video analysis of the shooting speed of "WackyJacky101" on Youtube, DrLupo testing in Fortnite Battle Royale, and even the prestigious Digital Foundry group also tried Similar tests at different frame rates. Because this situation is common among PUBG and Fortnite, it seems that the problem lies in the Unreal Engine (the development kit that bo