Yeah. The general speed that you set isn’t necessarily the speed that your printer will print at. That might be the max speed you might get in the best situation or location.

For example, depending on the settings, first layer, outer walls, bridges and other parts of the model cann all be printed at a lower speed to preserve quality. Your print head also needs to accelerate and decelerate for every corner so that it doesn’t overshoot and go where it should. So low acceleration/deceleration play also a part. And the model itself has to be considered in this too because long, mostly straight lines can accelerate to that speed and stay on it for longer.

So what you set as “speed” in the slicer is mostly not what you actually get. Some slicers have a speed display with a colour gradient after you sliced it so that you can see which parts are faster or slower.