Were there optimisations in 4.22?

[Bazza]

My game seems to be looking crisper and playing miles smoother. Station scan mode no longer presents any problems at all. Murky Skies graphical glitch issue is gone due to asteroid optimising and DeVries has never played better. Was there an optimisation pass done or am I imagining things?

Either way, I am pretty chuffed with current performance in latest patch.

[CBJ]

There were indeed some performance improvements that would affects specific areas in the map, Murky Skies being the main one.