Can't confirm George.

I have dynamic reflections disabled all the time and from the beginning on I have that FPS. On any other Flytampa Scenery it runs smooth.

So for me it's not the dynamic reflections

Had a look

FT Boston rebooted in 4.2 with Jetways and no Aerosoft Boston in the PMDG 777 : 15-17 FPS
Same as before but with jetways disabled I get 18-20 Fps.

Note that I have steady 25-30 FPS on the other Flytampa sceneries