Anthropic announces significant performance improvements for Claude Desktop

Anthropic announced that Claude Desktop now starts in the background approximately twice as fast in 95% of use scenarios compared to a month ago. The application now runs at full speed even when the window is hidden, unlike the previous version where timers were limited and the JavaScript engine entered power-saving mode. In parallel, Claude Code CLI also received optimizations, with CPU usage reduced to about half in 99% of use cases. The improvements were achieved through adjustments to Bun's garbage collection mechanism, which was redesigned to start only when the process is idle, instead of running at fixed intervals that could interrupt critical operations.