Windows 10: Desktop Windows Manager causes severe game lag

I have a Dell Inspiron 7501 with the following specifications:OS: Windows 10 Processor: intel core i7-10750 Memory: 16 GB RAM Graphics: Nvidia GeForce GTX 1650For the past few months I have been facing some problems while playing a 3D game called SpaceEngine on my computer. The game lags severely and the FPS drops to as low as 6. To pinpoint the issue I opened up Task Manager and found something weird.In the rare instance that the game does NOT lag which does happen sometimes, the Task Manager showed the following stats,The GPU usage of the game was around 80-83% and the Desktop Windows Manage

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Desktop Window Manager causes major lag

So I installed Visual Studio Code and launched it. In a while my PC became unresponsive due to some kind of high CPU and RAM usage. After several minutes of lag I finally uninstalled it and things became better a little. After restart I noticed that some
kind of lag is still present: my mouse flickers and everything runs poorly, like if I have 100% CPU usage. I've checked Task Manager and see that CPU consumption is only at 30%, which can't be that cause of lag. But anyway normal consumption with ONLY opened
Task Manager is around 3-5%. I've checked Processes tab and I noticed that Task Manager and Desktop Window Manager processes are using in total 27% of CPU. After some investigation I noticed that ANY active window (like explorer, Chrome, Telegram) would use
around 10-12% of CPU, while Desktop Window Manager still uses 13-15% of CPU. It seems like something went wrong with drawing process in Windows Desktop Manager during installing of Visual Studio Code and it causes some high load on OS which causes interface
to lag. To clarify, my PC is virus-free. CPU: Intel i5-3570k, RAM: 16Gb DDR3, Automatic Updates are "On". So, my question is: How to fix any present issues with Desktop Windows Manager or roll it back, to state when it was working correctly. And what did Visual
Studio Code did to it ?

 

Card games lagging!

Hi Helena,

If it's an online game, the lag issue may have been caused by your Internet connection. It can also occur due to the game server issue. We'll need to gather a bit more information to better identify what's causing this. Kindly answer the following:

• Have you made any changes prior to this issue?
• What card game are you having issues with?
• Is the issue the same with other games?
• What troubleshooting steps have you done so far to resolve the issue?

Meanwhile, if the card game you're playing is downloaded from Windows Store, we suggest running the
Windows apps troubleshooter. The apps troubleshooter can help resolve issues with games and applications downloaded from Windows Store.

Regards.

 

Turning game mode on causes mouse lag

• It was a .net optimization service and windows defender update, which also took up a lot of cpu usage. (I'm guessing that's what caused the mouse to stutter and lag).
• No, the game runs fine, as long as there aren't any compulsory windows updates that decide to run all of a sudden when I've been gaming an hour in.
• Logitech G403. Uninstalled the drivers thinking it was a problem.
• Yeah, especially those that utilise 100% cpu usage.

Just in case, it's a i5 7300HQ.