Lag is the delay between the time the source sends the digitized information to the projector and the image’s display. Excessive lag can be disastrous to gaming.
Some cheaper, and even some expensive, projectors have horrid lag because they use yesterday’s technology in order to cut production costs. That’s not a good way to save a buck. Make sure your new projector has a lag of under 50 milliseconds, like all the ones we reviewed here.
Judder, or image tearing, is the stop-motion effect that makes it look like the game is skipping frames. It’s usually caused by a cheap processor. Avoid no-name brands. That’s the best way to avoid judder. Big-name manufacturers of good projects for gaming don’t stake their reputation with inferior electronic components.
The projectors we reviewed are free of lag and judder issues, and other projectors from there same manufacturers can be trusted as well.