"Intel Core i5-10400F is too weak for NVIDIA GeForce RTX 3060 on 1920 × 1080 pixels screen resolution for General Tasks.
This configuration has 31.8% of processor bottleneck ."
Indeed, this might be the problem. I myself struggled with a bottleneck a couple of months ago with an NVIDIA RTX 3060 and an Intel i5 2500k. I upgraded to a Ryzen 5800x and the problem was fixed.
If you can’t solve the problem through any other way, that is the CPU I recommend you buy.
I ran a quick test using https://pc-builds.com/bottleneck-calculator/
"Intel Core i5-10400F is too weak for NVIDIA GeForce RTX 3060 on 1920 × 1080 pixels screen resolution for General Tasks.
This configuration has 31.8% of processor bottleneck ."
Indeed, this might be the problem. I myself struggled with a bottleneck a couple of months ago with an NVIDIA RTX 3060 and an Intel i5 2500k. I upgraded to a Ryzen 5800x and the problem was fixed.
If you can’t solve the problem through any other way, that is the CPU I recommend you buy.