<fingers in="" ears=""> La la la... lol.
Actually, you can do two things to improve performance in 1.2 in regards to the screens. Either you can reduce the pixel_size value in the panel.cfg from 1024,1024 to 512,512 or you can comment out gauges from the VCockpit03 section.
VCockpit03 controls the Copilot's MFD, FMS and standby FMS. It was added in 1.2 to allow you do customise the co-pilot's MFD and not affect the pilot's MFD. So removing the section will remove the Co-Pilot's MFD, and two Co-Pilot FMS units and should increase some performance.
The Copilot model can be removed via the FMS/SYSTEM PAGE/AC CONFIG/ page.
Thx! I stayed with co pilot, but did this 512 pxt + changed back 2 same MFD only + only one FMS, fps back to 1.1

:
[Vcockpit01]
Background_color=0,0,0
size_mm=1024,1024
visible=1
pixel_size=
512,512
texture=$HUD
gauge00=BA-HUD!HUD, 137, 200, 750, 750
gauge01=dsd_fsx_xml_sound!Sound, 1,1,1,1, .\SimObjects\Airplanes\IRIS Battlefield Airlifter\sound\C27J_sound.ini
gauge02=BA-SYS!C27J-SYS-INIT, 1,1,1,1
gauge03=BA-SYS!C27J-SYS-APU, 1,1,1,1
gauge04=BA-SYS!C27J-SYS-ELECTRICS, 1,1,1,1
gauge05=BA-SYS!C27J-SYS-ECS, 1,1,1,1
gauge06=BA-SYS!C27J-SYS-STARTERS, 1,1,1,1
gauge08=BA-SYS!C27J-SYS-AUTOPILOT, 1,1,1,1
gauge09=BA-SYS!C27J-SYS-BUTTONS, 1,1,1,1
gauge10=BA-SYS!C27J-SYS-FUEL, 1,1,1,1
gauge11=BA-SYS!C27J-SYS-MISC, 1,1,1,1
gauge12=BA-SYS!C27J-SYS-LIGHTING, 1,1,1,1
gauge13=BA-SYS!C27J-SYS-AUDIO, 1,1,1,1
gauge14=BA-SYS!C27J-SYS-RF, 1,1,1,1
//*****************************************************************************
[Vcockpit02]
Background_color=0,0,0
size_mm=1024,1024
visible=1
pixel_size=
512,512
texture=$AEGIS1
gauge00=BA-AEGIS!FMS-1, 587,681,437,343
gauge01=BA-AEGIS!PFD-1, 0,0,513,680
gauge02=BA-AEGIS!MFD-1, 513,0,513,680
gauge03=BA-AEGIS!SFD-1, 0,681,342,342
gauge04=BA-AEGIS!AEGIS-CFG, 1,1,1,1
//*****************************************************************************
[Vcockpit03]
Background_color=0,0,0
size_mm=1024,1024
visible=1
pixel_size=
512,512
texture=$AEGIS2
gauge00=BA-AEGIS!MFD-3, 513,0,513,680
gauge01=BA-AEGIS!DIGI_AP_ALT, 018,186,96,27
gauge02=BA-AEGIS!DIGI_AP_SPD, 123,186,58,27
gauge03=BA-AEGIS!DIGI_AP_BARO, 188,186,76,27
gauge04=BA-AEGIS!DIGI_AP_VS, 018,222,96,27
gauge05=BA-AEGIS!DIGI_FUEL_LMAIN, 018,047,98,27
gauge06=BA-AEGIS!DIGI_FUEL_RAUX, 017,113,98,27
gauge07=BA-AEGIS!DIGI_FUEL_LAUX, 017,080,98,27
gauge08=BA-AEGIS!DIGI_FUEL_RMAIN, 017,148,98,27
gauge09=BA-AEGIS!DIGI_FUEL_TOTAL, 017,016,98,27
gauge10=BA-AEGIS!DIGI_RADIO_TX, 149,059,77,27
gauge11=BA-AEGIS!DIGI_RADIO_NAV, 129,089,117,27
gauge12=BA-AEGIS!DIGI_RADIO_COM, 129,117,117,27
gauge13=BA-AEGIS!DIGI_RADIO_ADF, 129,146,117,27
//*****************************************************************************
[Vcockpit04]
Background_color=0,0,0
size_mm=1024,1024
visible=1
pixel_size=
512,512
texture=$AEGIS3
gauge00=BA-AEGIS!MFD-1, 513,0,513,680
//gauge00=BA-AEGIS!MFD-2, 513,0,513,680
//gauge01=BA-AEGIS!FMS-1, 150,681,437,343
//gauge02=BA-AEGIS!FMS-1, 75,338,437,343
//*****************************************************************************
</fingers>