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.
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Similar Problems
surfaced semanticallySlack Desktop Client Lags When Switching Between Conversations
The Slack PC client exhibits noticeable lag when users switch between channels or DMs during high-activity periods, breaking the fast-scanning flow that knowledge workers rely on. The performance degradation is particularly disruptive during busy project phases when quick context-switching is critical. This points to rendering or state management inefficiency in the desktop client.
Slack becomes hard to track and slows down with many open threads and channels
Users active across many teams and channels report that keeping up with threads becomes difficult, and the app itself slows down when too many channels and threads are open simultaneously. This creates both an information-overload problem and a performance problem for heavy multi-team users.
Slack 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 Client Too Resource-Intensive on macOS
The Slack desktop app on macOS consumes excessive CPU and memory, causing system slowdowns during normal use. The Electron-based architecture is the root cause — a structural constraint not easily patched. Enterprise users running Slack alongside other heavy tools feel the impact most acutely.
ClickUp Performance Lag Disrupts Productivity With No Clear Root Cause
ClickUp users experience unexplained performance lag that interrupts workflow, and the vendor has not provided a clear cause or resolution path. As teams depend on ClickUp for daily task management, intermittent slowness directly reduces productive output. This is a persistent quality-of-service issue that affects user confidence in the platform.
Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.