Performance is design, and every millisecond counts.
Every update in 2025 trimmed Obsidian's load speed. This is quite complex given the number of different configurations and operating systems Obsidian supports.
We employed many different solutions to speed up Obsidian across various syncing methods, operating systems, plugins, vault sizes, etc.
Getting into Obsidian should be instantaneous regardless of vault size. It's absolutely necessary so that ideas can flow without friction.