Check the weather radar setting in the configuration utility. Check your gauge refresh rate settings as well.

HI Michael the combination of the erj v2 and dfw will defiantly stress out your cpu hmm trying to figure out why your fps went down so much and its strange that it only happen's with the erj v2. usually feelthere has a Configurator you can mess around with to see if your fps increase bad thing is that it will slow down the gauges. on the e-jets the Configurator goes from 0 too 100% under a tab called fps it should be the same for th erjv2 you should give it a a shot.

Thanks for the suggestions. I've made some adjustments and killed some background apps but the best I can muster is 5-7 FPS. It's really frustrating. I guess my system isn't up to par. I get 25-30 FPS with the FlyTampa and FlightZone sceneries so there's something about the FSDT textures my PC doesn't like.