CRTs don't have motion blur or ghosting. They have pretty much instant colour response, so there's no ghosting. They are not sample and hold displays so there is no motion blur. Both ghosting and motion blur are unavoidable on TN, IPS, VA panels. Even OLEDs avoid ghosting but still have motion blur. The only way to eliminate motion blur on sample and hold displays is to have some type of flicker to lower the persistence of the image (backlight strobing, black frame insertion) or to increase the refresh rate and frame rate (500 fps @ 500 Hz). CRTs don't have motion blur because they're impulse driven and the image is only shown for a short period of time before the image decays and then the next image is drawn.
CRTs have their own problems though. But in some ways they were superior, especially for gaming.
https://testufo.com/
I guarantee you will see blurring on this test, blurring that will decrease with higher fps. Even on a 240Hz with very low ghosting, I still cannot make out all of the details on the ufo perfectly in motion. There are little patterns of white dots on the ufo, and each group of three dots looks like one large dot at 240fps for me.
