Acer 515 5- use UHD intel graphics and no usage on RTX 3050 ti, 0% usage when I am gaming, plz. help

1. Add game.exe in windows graphics settings and set high performance for Dgpu

To add a game executable file (e.g., game.exe) to your graphics settings and activate the dedicated GPU (dGPU), follow these steps:

• Open Graphics Settings: Click on the Start menu, type "Graphics Settings," and select it from the results.
• Add Application: Choose "Desktop app" from the dropdown menu, then click "Browse" to locate your game.exe file.
• Select GPU: Once added, click on the game name, select "Options," and choose "High performance" to set it to use the dGPU.
• Save Changes: Click "Save" to apply the settings

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2. Add Game.exe file in nvidia control panel and select High-performance nvidia processor

To add game.exe to the NVIDIA software and activate the dedicated GPU (dGPU), follow these steps:

• Open NVIDIA Control Panel: Right-click on your desktop and select "NVIDIA Control Panel."
• Manage 3D Settings: Click on "Manage 3D settings" in the left sidebar.
• Program Settings: Go to the "Program Settings" tab and click "Add."
• Select Game Executable: Browse to find and select game.exe.
• Set Preferred Graphics Processor: In the dropdown menu, choose "High-performance NVIDIA processor."
• Apply Changes: Click "Apply" to save your settings.

This will ensure that your game runs using the dGPU.

Try To reinstall Nvidia Gpu driver using DDU Uninstaller and check.

Check step no.8 from the below guide I provided-

Windows 10/11 optimization guide for gaming — Acer Community