@ClaudeDevs posted on X today (August 19), stating that Claude Desktop’s background startup is about 2× faster than a month ago in 95% of use cases.
Anthropic said that after Claude Desktop starts in the background, its timers are throttled and the JavaScript engine enters a power-saving mode. Now, Claude Desktop can start at full speed even when its window is hidden. The relevant screenshots are shown below:
The company also said that Claude Code CLI’s CPU usage has fallen to around 1/2 in 99% of use cases. The optimization was mainly achieved by adjusting Bun’s garbage collection mechanism. In previous versions, it ran on a fixed timer, so it could suddenly start while the process was running and compete for CPU resources when Claude Code was busiest. It has now been adjusted to start only when the process is idle.
