overhead panel question regarding 74F

when switched to the overhead panel is it fps hungry like the pax version. I am using two monitors, one main screen and the other as overhead. In the pax version this "cost" me about 12 fps. With the pmdg 737ng, level-d 767 and feelthere 737 it takes no hit at all.rickPent 3.2 1024 htasus p4c800hd 200gb 4 partitionsmaxtor 7200 rpmati 9800pro 256 cat 5.8 ATTools21"IIyama crt19" relisys crtwin xp sp2 CH yoke + pedals+ dell laptop for asv ivae etc