Troubleshooting High CPU and GPU Usage after Upgrading to GeForce RTX 3060

Recently, I faced a frustrating dilemma following the unexpected failure of my EVGA BLACK GAMING GeForce RTX 2070 SUPER. With a limited budget and the need for a replacement, I opted for the GeForce RTX 3060 as a temporary solution. However, upon installing the new card, I encountered significant performance issues that made using my computer almost unbearable.

After the installation, I noticed that both my mouse and audio experienced severe stuttering, a problem I managed to fix by using Display Driver Uninstaller (DDU) in safe mode to thoroughly cleanse my system of old drivers. I then reinstalled the latest drivers, hoping for a smoother experience. Unfortunately, this did not resolve all my issues.

Now, simply opening a new browser window or scrolling through websites—especially platforms like YouTube—causes my CPU and GPU usage to spike to around 80%. This spike lasts for about a minute, rendering my computer nearly unresponsive during that time. Waiting for the system to stabilize has become a necessary step, but it’s incredibly frustrating.

I am reaching out to the community for any insights or suggestions on how to tackle this issue. My current situation is untenable; I can’t even enjoy watching videos or gaming, which is why I upgraded in the first place. Any advice or troubleshooting steps would be immensely appreciated as I navigate this challenging situation.