When installed KTIW in P3D v5.1.12 (HF1) when approaching an this airport will dramatically increase GPU memory usage and turn off the atmosphere (EA). When removing KTIW from the simulator with the default airport, everything is fine. I fly safely with the same simulator settings over TE Washington & TE Oregon & TE California busiest locations - Seattle (+ 2S1, 1WA6), San Francisco (+ KSQL), Portland (+ KVUO) and everything is fine. But as soon as KTIW is installed in simulator again, GPU memory usage at this airport will rise to a critical level again. Although there are no problems over Seattle and the surrounding area, even with the KTIW installed, the main thing is not to fly close to it. I am disappointed with the purchase What is the problem in this particular case?