If you need more than 200ms of delay, you'll be hard pressed to find any solution - the 970 is on the high side (I've seen some processors lately offering only 85ms or so), and most folks end up only using about 25ms to 40ms. You may want to make sure you have the Oppo's latest firmware - there have been some fixes made on it. You may also want to look into settings on the projector that may mitigate the amount of video processing it's doing (and thus the amount of video delay it's creating).