Slack Desktop App Lags With High Memory Use Across Multiple Workspaces
Running several Slack workspaces at once drives high memory use and sluggish performance. It affects people who work across organizations.
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Similar Problems
surfaced semanticallySlack Desktop App Consumes Excessive Memory and Feels Sluggish
Users report the Slack desktop client uses a large amount of system memory and performs sluggishly during normal use. This is a common complaint about Electron-based messaging clients affecting daily productivity.
Slack desktop app consumes excessive RAM and CPU on laptops
Knowledge workers running Slack alongside development or creative tools experience significant performance degradation due to the app's high memory and CPU footprint. This is a structural Electron framework issue that Slack has not resolved despite repeated user complaints. It affects the majority of Slack's 32M+ desktop users and compounds on lower-spec machines.
Slack consumes excessive RAM and slows laptops during huddles
Users report Slack uses a large amount of RAM and noticeably slows their laptop, especially while in a huddle call. This is a widely-experienced performance problem given Slack's broad daily-active-user base.
Slack lags and becomes unresponsive in large workspaces
Slack performance degrades noticeably as workspace size grows, requiring constant manual refreshes to see new messages. This is a structural scalability problem affecting enterprise customers who depend on Slack as their primary communication layer.
Slack Desktop App Consumes Excessive RAM and CPU on Laptops
Slack's Electron-based desktop application is notorious for high memory and CPU consumption, degrading performance on laptops especially when multiple workspaces are open. This forces users to close Slack to reclaim system resources or accept reduced responsiveness across other applications. The issue has persisted for years and is a known architectural constraint of the Electron framework.
Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.