Slack Desktop Client May 2026

| Problem | Solution | |---------|----------| | High RAM usage | Disable hardware acceleration ( Preferences → Advanced → Uncheck "Use hardware acceleration" ) | | Slow startup | Remove unused workspaces; limit auto-start workspaces to 2–3 | | Fan spins up | Limit animated GIFs & emoji ( Preferences → Accessibility → Reduce motion ) | | Cache too large | Clear cache via Help → Troubleshooting → Clear Cache and Restart | | Slow channel switching | Turn off "Show unread count on channel list" for large workspaces |

1. What is the Slack Desktop Client? The Slack Desktop Client is a standalone application for Windows, macOS, and Linux (Debian/Ubuntu/RHEL/Fedora). Unlike the web version, it runs natively on your OS, providing deeper system integration, offline support, and background notifications.

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