Yes and I think I know why.
From the early years of modding, I notice that there is a script (I don't know how to call it exactly) that is being use to minimize the visuals of the game while flying or using jetpack even when the game is unmodified. The further you accelerate with the speed, the quick all of the generic objects will disappear and as well when you get higher in the sky. This is something that I've notice a long time when I was doing small mod installments like vehicles and such.
If you use S/back arrow for Jet to slow the speed, all the objects will start to appear shortly as the engine of the game start to have some kind of free space to process back all of those objects or it's blocked by a script/command to process the objects at certain point. I activated all the commands from Twaker while using Srt3 with mipmaps and Lod Mod with trees, the game doesn't have enough power to process everthing fast. At least this is how I understand. Is too heavy modified, we have to recognized this.
So far, I don't know what to do to fix this, because it seems that there is no tool/program/command to solve the problem while flying.