Hello Dear,
Please help me ,i tried for 1 month to solve this problem

my computer configuration is :
Graphic card : 2 PNY NVS 810  that SLI is disabled
Motherboard : Asus X99 deluxe prime
Sim : P3d v4  64bit
OS: windows 10 64 bit last update
monitors : 7x Lenovo ThinkVision T32 and 2xLG 4K


I recently bought Boeing 737-300 base pack.
I start a flight without any problem and everything work fine but when i add new view(no difference which one) and unlock the windows then drag it to another monitor FPS drop from 40 to under 1 such as 0.9 or 0.5. new view just work in one specific monitor expect primary monitor in another one FPS dropped.
i did everything and try any solution that i found in internet but problem still exist.

update graphic card driver
update windows
zero p3d performance configuration
and 100 other solutions  :-[


otherwise another addons work without any problem such as another company

Please please help  :( :( :( :( :(
Thank you