[Is Orbx Going to release Melbourne Airport (YMML) MSFS]

Would love to see this as well. So far I don't think anybody is working on it yet or at least not made it known to the public that they are.

[Severe Stuttering Orbx YBBN / Brisbane Landmarks MSFS and Singapore Landmarks]

I too have noticed severe frame rate drop with the Singapore Landmarks installed. Especially when panning a direction that is not facing the CBD to panning towards it. Frame rate drops to about 20fps from a solid 60+ fps. I have CloudSurfAsia's WSSS also installed. 

 

My Specs:
Intel i9-9900K @ 5.1ghz

RTX 2080
32GB RAM

M.2 NvME 2T SSD

Windows 10