Fragqnox

I am unsure if this is the correct place to post this but, I have a few questions that pertain to the differences in sensitivity that I would like explained concisely to me if possible. I used to play on 16:9 aspect ratio 1920x1080 on 2.7 400 dpi with a pixel ratio of 0.7464. I then swapped to 16:10 1728x1080 stretched with the same sensitivity and dpi also keeping the same pixel ratio of 0.7464. I wish to play on 1280x960 4:3 stretched same sensitivity however the pixel ratio is now 0.6635. When I would play on 16:9 aspect ratio I felt like sometimes my shots would miss by the littlest amount and I couldn't understand why, until I was told to play on a higher dpi. I swapped to 16:10 because I didn't want to change my dpi but the same shots would not miss anymore I'm not sure if its because the heads are slighter larger. I am now trying to play on 4:3 1280x960 and my bullets do not miss at all and I don't have this issue whatsoever. My questions are these: What is the significance of this pixel ratio when playing on resolutions that contain more pixels and is lower pixel ratio always better (like 0.7464 vs 0.3 for example)? Is there an actual difference in horizontal movement of the mouse when you play 16:9 or 16:10 compared to 4:3 stretched or is it some sort of visual effect that the mouse is moving faster? Is It worth changing to a higher dpi like 1600 or 800 to reduce the staircase micromovements that occur in the game engine?

I am unsure if this is the correct place to post this but, I have a few questions that pertain to the differences in sensitivity that I would like explained concisely to me if possible. I used to play on 16:9 aspect ratio 1920x1080 on 2.7 400 dpi with a pixel ratio of 0.7464. I then swapped to 16:10 1728x1080 stretched with the same sensitivity and dpi also keeping the same pixel ratio of 0.7464. I wish to play on 1280x960 4:3 stretched same sensitivity however the pixel ratio is now 0.6635. When I would play on 16:9 aspect ratio I felt like sometimes my shots would miss by the littlest amount and I couldn't understand why, until I was told to play on a higher dpi. I swapped to 16:10 because I didn't want to change my dpi but the same shots would not miss anymore I'm not sure if its because the heads are slighter larger. I am now trying to play on 4:3 1280x960 and my bullets do not miss at all and I don't have this issue whatsoever. My questions are these: What is the significance of this pixel ratio when playing on resolutions that contain more pixels and is lower pixel ratio always better (like 0.7464 vs 0.3 for example)? Is there an actual difference in horizontal movement of the mouse when you play 16:9 or 16:10 compared to 4:3 stretched or is it some sort of visual effect that the mouse is moving faster? Is It worth changing to a higher dpi like 1600 or 800 to reduce the staircase micromovements that occur in the game engine?

FOV numbers are not working either only shows value for default 80 regardless of change.