I made my SaaS dashboard load instantly — here's exactly how

Short summary

A SaaS developer shares the stale-while-revalidate pattern that cut dashboard load times from 2–3 seconds to near-instant. The approach serves cached data immediately from localStorage while fetching fresh data in the background, updating the UI when new data arrives. Includes TypeScript implementation and TTL values (2–10 min) for different data types.

• •Stale-while-revalidate caching pattern reduces load times from 2–3 seconds to near-instant
• •Show cached data immediately, fetch fresh in background, update silently when new data arrives
• •Includes TypeScript code and TTL strategies (2–10 minutes) for different data types

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