Then I launched the simulator and I noticed that everything works except for one thing , when I land on any planet initially the planet appears a bit fuzzy and good load the graphics of the planet it takes quite a while
This is normal. With good graphics, it can take quite long to load a planets landscape,
especially with your graphics card. Could you mind telling how long it takes to load, and how much video memory your card has?
hen when I go to flight the same thing happens or that some soils are struggling to load !
I'm not sure if I understood this right, but when the landscape has loaded, it doesn't stay like that if you fly off somewhere else, since that would consume huge amounts of memory. If you fly off the surface of a planet, the terrain reduces in detail.
Hope I helped, and welcome to the forum.