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I found an EA forum post by a member experiencing the same issue as you with a Lenovo laptop. Apparently 2042 is selecting the AMD integrated GPU instead of the Nvidia discrete GPU. You can verify this by opening Windows Task Manager (alt + ctrl + del) and seeing which GPU is being used more.

So far I haven't found a fix to get 2042 to select the Nvidia GPU. It appears there might not be a way to disable the AMD GPU in bios for the IdeaPad Gaming 3 15ACH6.

I also learned some laptops allow the discrete GPU to bypass the integrated GPU, and some laptops do not. Sometimes plugging a monitor into the HDMI port allows the discrete GPU to bypass the integrated GPU. It appears this might not be possible on the IdeaPad Gaming 3 15ACH6.

Laptops that can bypass the integrated GPU have a piece of hardware inside them called a Mux Switch. There's an option called Hybrid Mode in the Lenovo Vantage software that turns this hardware switch on and off if it's supposed by the hardware.