Product search is the most critical conversion funnel on any eCommerce platform. In Magento 2, achieving a best-in-class search experience requires two distinct components: a powerful, reliable backend for indexing and relevance and a lightweight, instant frontend for user interaction. Relying solely on either the default Magento search or a single, heavy extension introduces compromise - either in search quality or in frontend performance.

This technical guide explores the architectural synergy between ElasticSuite Search and the Fast Search module by qoliber. This combination is the definitive technical choice for maximizing magento findability while preserving the superior speed and Core Web Vitals (CWV) integrity of the Hyvä frontend.

---

Table of Contents

• 1. ElasticSuite Search: The Backend Powerhouse
• 2. Fast Search: The Frontend Accelerator
• 3. The Architectural Synergy: Speed and Relevance
• 4. The Hyvä Performance Advantage

---

1. ElasticSuite Search: The Backend Powerhouse

ElasticSuite Search (built on Elasticsearch) is widely recognized as the standard for sophisticated search backend logic in the Magento ecosystem. Its primary function is to handle the complex, resource-intensive tasks of indexing and relevance scoring.

Key ElasticSuite Strengths:

• Relevance Customization: Provides granular control over how results are scored and ordered (e.g., boosting based on stock, recency, or specific attributes).
• Fuzzy/Typo Tolerance: Handles complex queries, misspellings and stemming, ensuring the search engine understands user intent despite input errors.
• Asynchronous Indexing: Manages the massive task of re-indexing large catalogs without locking up the database.

ElasticSuite ensures that when a query is executed, the results are the most accurate and relevant possible.

---

2. Fast Search: The Frontend Accelerator

While ElasticSuite provides powerful results, the speed at which those results are delivered and displayed to the user is governed by the frontend. This is where qoliber Fast Search becomes essential.

Traditional search frontends often require a full page reload or inject slow, legacy JavaScript (like Knockout.js) to display results, leading to high latency and poor Core Web Vitals (CWV).

Key Fast Search Strengths:

• Instant Autocomplete UX: Delivers results instantly as the user types, using minimal, asynchronous JavaScript (Alpine.js integration).
• Low JavaScript Payload: The lightweight design ensures the module does not block the browser's main thread, keeping First Input Delay (FID) low.
• CWV Protection: The clean rendering structure prevents Cumulative Layout Shift (CLS), ensuring visual stability.

Fast Search ensures the instant experience required by modern UX standards. Find technical specifications on the Fast Search extension page.

---

3. The Architectural Synergy: Speed and Relevance

The perfect duo combines the strengths of both:

1. Query Power: Fast Search receives the user's input instantly on the frontend.
2. Relevance Engine: It then passes the query to the optimized ElasticSuite Search backend for rapid processing.
3. Instant Display: The highly relevant results are returned to Fast Search, which displays them immediately in a performant, CLS-zero dropdown interface.

This decoupled architecture ensures that the intensive relevance work is handled by the powerhouse (ElasticSuite), while the instant feedback and high-performance display are managed by the accelerator (Fast Search), resulting in best-in-class magento findability.

---

4. The Hyvä Performance Advantage

This decoupled architecture is perfectly aligned with the Hyvä philosophy. Hyvä provides the fast core theme, while Fast Search provides the fast search component, without reintroducing the frontend complexity and payload that Hyvä was designed to eliminate. This synergy is the non-negotiable standard for any agency prioritizing both conversion and SEO rankings in 2025.

---

Conclusion

Achieving optimal Magento findability requires a dual-pronged technical strategy. By pairing the powerful, accurate relevance of ElasticSuite Search with the instant, lightweight frontend delivery of qoliber Fast Search, developers can deliver an unparalleled search UX that drives conversion while sustaining perfect Hyvä performance and high CWV scores. This duo is the definitive architecture for high-performing Magento stores.

Explore qoliber’s Hyvä-compatible ecosystem - performance-first, compliance-ready.

Article updated December, 2025