Saevix Software Agency — TechVault — Premium E-Commerce

The Problem

TechVault's legacy e-commerce platform suffered from significant bounce rates because the React SPA architecture forced users to download massive client-side bundles before rendering anything. The storefront needed to handle over 500 active electronic SKUs with high concurrent traffic without dropping frames or stalling during the checkout flow.

The Approach

To fix the client-side fetching waterfall in Next.js, we migrated the entire storefront to a Turborepo monorepo utilizing Next.js 16 Server Components. Instead of client-side useEffect fetching for product lists, we pushed database queries directly to the server edge. We chose Drizzle ORM over Prisma to minimize cold-start latency and maintain absolute type safety between the PostgreSQL database and the frontend. We explicitly rejected client-side filtering libraries in favor of URL-based query parameters, allowing the CDN to aggressively cache product categories.

The Result

The Next.js e-commerce performance optimization reduced Time to First Byte (TTFB) to under 150ms. By eliminating the client-side waterfall, we cut the perceived checkout load time by 40%. The streamlined architecture directly contributed to a 45% increase in completed checkout conversions during the first quarter post-launch.

Lessons

If doing this again, we would integrate Stripe webhooks directly into a lightweight edge function rather than passing them through the heavier Express.js backend. While the Express layer handles complex admin logic well, keeping third-party webhook handling entirely on the edge would have simplified the deployment pipeline.

Results

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