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Performance issues feel like “the app is slow” but usually break down into network, rendering, or data volume. Gather one slow trace with timestamps before escalating—patterns matter more than one-off complaints.

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Browser

Disable heavy extensions and test with hardware acceleration toggled.

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Profiles

Try a fresh browser profile with only default extensions. Ad blockers and password managers sometimes inject scripts that delay paint.

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Content

Huge embedded media slows load—lazy load or host externally when possible.

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Tables and charts

Large datasets should paginate or virtualize. If the editor feels fine but read mode lags, the DOM size is a likely culprit.

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Network

Corporate proxies sometimes buffer WebSockets—ask IT for allowlist guidance.

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VPN

Split tunnel vs full tunnel changes latency paths. Compare latency with VPN off (if policy allows) to isolate the network layer.