PC monitors of all kinds.
I hope this is the right place to ask this.

I bought a 27 inches LED SAMSUNG curve monitor which I was intended to use as the second screen for my McBook Air. I also wanted to use it with my Apple TV. In order to connect the monitor to my laptop I bought a cheap USB c to HDMI adapter from Amazon (about 13 dollars).

The problem is: the maximum resolution that I get when I use the monitor as the second screen on my mac is quite poor, to the point that small font sizes se10.
em almost blurry.

My question is: can this problem related to the cheap adapter? I thought of this possibility since when I use the monitor with the Apple TV the image looks wonderful.