I also mentioned a bug about this. I have found a solution (maybe not the best, but it works).
This only works if you have nvidia drivers installed. Open the nvidia settings, and under PowerMizer, change to maximum performance.
I guess the terminal uses the GPU a ton to render, and when it's lowering clock speeds to save power, it's reducing performance of the terminal.
I also mentioned a bug about this.
I have found a solution (maybe not the best, but it works).
This only works if you have nvidia drivers installed.
Open the nvidia settings, and under PowerMizer, change to maximum performance.
I guess the terminal uses the GPU a ton to render, and when it's lowering clock speeds to save power, it's reducing performance of the terminal.