# ISR on Vercel is now faster and more cost-efficient By Steven Van · 2025-01-30 Regionalized caching cuts ISR latency by up to 80% and compression cuts ISR spend by up to 65%, on all Vercel plans after a redeploy. ISR cache updates on [Vercel]() are faster and cheaper, according to [the company's announcement](). The changes apply automatically to all Vercel customers, and a redeploy picks them up with no configuration changes. - **Regionalized caching:** ISR cache entries are now stored in the same region as your functions. Vercel says this improves TTFB by up to **80%** when a cache read happens within the same geographic area, with the biggest gains for users outside the United States. - **Automatic compression:** ISR cache entries are now compressed, which reduces ISR write units, ISR read units and Fast Origin Transfer costs. Vercel puts the saving at up to **65%** of ISR spend. ISR lets a site update individual pages without a full rebuild. The announcement mentions Partial Prerendering (PPR) as another way Vercel is working on hybrid rendering. [![]()]() ![Vercel]() Vercel The platform for frontend developers — deploy, preview, and scale web apps and AI agents with zero config. [View Vercel →]() [Original source]() [Read ISR on Vercel is now faster and more cost-efficient on Creators Toolbox]() --- Canonical source: https://creatorstoolbox.com/blog/vercel-isr-on-vercel-is-now-faster-and-more-cost-efficient