If You are Experiencing Any Performance Issues on PC, Try Turning Off Game Mode
The game mode is an integrated system in Windows 10 that is supposed to boost your performance when playing games. When it is working, it should automatically detect when you are running a game, and reprioritize the system in making your experience as enjoyable as possible. However three years after it’s inclusion in Windows 10, there are reports that it is causing more harm than good.
If you are experiencing any sort of problem it might be a good idea to turn it off. If you are not sure if it is on or not, you better go check, because it is turned on by default. You do this by going into your settings, then into gaming, and finding the section titled game mode. Once there, it is as simple as clicking the off button. According to some reports, the difference after turning it off is “night and day”. It has been affecting a wide range of games, including League of Legends and Call of Duty: Warzone. The problem is mostly centred around people that own Radeon 5000 series of GPUs, but it does not seem to be exclusive to them either.
It is hard to figure out when this problem started happening. The threads online speaking about it are only a few days old, which could mean that the most recent Microsoft Update could have screwed something up. However, it doesn’t rule out the possibility that this problem could have been ongoing for a long time, and the solution was only recently discovered. I suppose it’s better late than never.
I’d say, either way, you should try turning off Game Mode and see if it makes any difference in your game. If you don’t notice any difference, keep it turned off until Microsoft makes a statement about this and fixes it.
Source: PC Gamer