I've had a stable P3D V3.0 since 9/2015, no problems w/ any add ons etc. I decided to install the FSDT Hawaiian Airports and suddenly when changing views in the 777, or other button inputs, there is a 1-2 second lag in the video display. I have many other airports and sceneries, and near as I can tell it was installing the Hawaiian Airports that was what was done immediately before this problem w/ the 777 appeared. So I uninstalled the airports, unfortunately to no avail. So could have been or must of been something other than these airports. I tried system restore to an earlier date a few days ago, but then P3D would not start, so I ended up restoring a full image done early this year, and all's well again. But I really liked those airports in the past and ended up uninstalling them years ago do to a real problem w/ a memory leak, or something that would just destroy frame rates insidiously over many minutes of flying.
Anyway, if you're using the 777 and these airports w/ no troubles, please let me know. Or if there other problems with these airports and P3D V3.x.
Thanks!