I have the similar problem in my P3D v3.4 (with last hotfix).
I'm not sure if it relates to the the same lighting problem, but standing on the threshold of rwy 27 I see a significant fps difference between day and night. When all scenery / airport lights are on, I have about 10 fps less than during a daylight. Unfortunately in such situation my fps are much worser than in EKCH by FlyTampa
Furthermore during a day with rather bad visibility I was able to see the runway lights, but they were only visible in a distance more or less from the middle of the runway. If it's necessary, I can put the screenshot here.