KSP frame rate drops while landing on planets and moons.

[Labrington]

So, after several years of playing KSP, I decided to bring something new to the gameplay, something more global than the small mods that I used. At first I wanted to use the RSS/RO build. But I wanted KSP to stay KSP, not Human Space Program. Therefore, I decided to install the Rescale Mod (х10.625) and related mods (Kopernicus, SigmaDemensions) and ran into a problem that I will describe below.

When landing on any planet or moon, the frame rate drops almost to a slide show (5-15 fps). It starts at about 40 km altitude. At the same time, none of the components of my PC are loaded to high values, as you can see on screenshots

But the strangest thing is when the distance to the surface becomes 150 meters and below, this drop disappears.

Of course, the vanilla version of the game does not have this problem, and it only appears when the Rescale Mod, Kopernicus and SigmaDemensions are installed. I removed other mods.

So, are there any users of these mods here who have encountered a similar problem? I would love to solve it. If any of you have any suggestions, I'll listen to you.

UPDATE: Here's what I found out: the drop also depends on the speed of the ship. And here's how it works: If the height above the ground is below 150 meters, then the drop will be constant. But if the ship is above 150 meters, and at the same time its speed does not exceed the limit of 5 meters per second, then the drop disappears

 

Edited November 12, 2022 by Labrington