Unlike previous Sony projectors, the VW350ES has a menu feature called Input Lag Reduction. (At least, I don't remember seeing it on others.)
Most LCoS projectors (like this Sony) tend to have a fair amount of input lag, making them relatively poor candidates for folks who take their gaming seriously, especially those playing team gaming, including 1st person shooters (World Of WarCraft, Call Of Duty...), and to a lesser extent, sports games, and auto racing.
Testing the projector's input lag speed, I used my standard method, with a timer being photographed on both the projected image and on a MacBook Pro laptop. In general we consider input lag of around 50 ms to be just acceptable to many hard core gamers. Down around 33ms is better. In a perfect world 0 ms lag time is what we'd all want, but around 16-17ms should be close enough to satisfy almost all of the most hard core gamers. (That's 1 frame behind on 60fps content).
I tried a couple of different modes, and played with a lot of different features on and off. What I learned was, you must turn on the Input Lag Reduction feature to get gaming performance! It is found in the Expert Settings sub-menu on the Picture menu. Without engaging it, lag times are often over 100ms.
But once you throw the switch everything changes. Input Lag Reduction works. Motion flow (CFI), disappears from the menus, but other things are also happening apparently. Lag times drop into a range of 16-17ms to 33-34ms. I tried turning on/off, contrast enhancement, gamma, and other controls, but none seemed to have a repeatable effect on lag times, but may be responsible for the less than consistent times.
That makes this a respectable gaming projector. Oh, there are faster DLP projectors out there, but there's obviously nothing with 4K capability. (No I did try measuring lag with 4K content - that's way ahead of the curve).
Suffice to know that if you like gaming and want to put a 4K projector in your media room or theater, this baby is up to it. Gamers - grab your controllers!