I know this has been asked many times, but I am asking it again. Dear Epic, please make it so that the launcher does not automatically start when I launch my UE4 projects.
The launcher is a slog, it costs an extreme amount of hardware resources just to sit there idly in the background. I know this is because it was build with Unreal Engine, but there is zero reason to force it to launch with a project. It doesn’t do anything to my projects while I work on them!
If I want to start a new project or add assets, I simply start the launcher manually myself, add the assets or start a new project, then I close it again.
In fact, the first thing I do when I open my projects is to close the launcher, because it slows my system and my editor down so much.
EDIT: The simplest fix seems to be to go to your “…\Epic Games\UE_4.25\Engine\Build” folder (or your engine version) and create an empty text document and name it PerforceBuild.txt
This will make the launcher not auto-start anymore when you open the editor.