(pricing):Improve mobile performance

[Sbragul26]

Description

This PR fixes #6927.

This PR improves the mobile performance of the Pricing page by reducing unused JavaScript, deferring non-critical components and images, optimizing rendering behavior, and improving cache strategy.

Changes included:

• Implemented lazy loading for below-fold components (Comparison, Reviews, OpenSourceBanner, FAQ) using React.lazy and Suspense
• Added loading="lazy" to testimonial images
• Enabled progressive lazy loading in review slider
• Wrapped heavy components with React.memo() to prevent unnecessary re-renders
• Used useCallback and useMemo to optimize event handlers and slider configuration
• Optimized resize event listener with { passive: true } and improved debouncing
• Improved cache headers for HTML, JS, CSS, images, and fonts
• Added meaningful alt text for accessibility

These changes reduce unused JS, minimize main-thread work, and improve overall Lighthouse mobile performance.

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[l5io]

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[Bhumikagarggg]

@Sbragul26 Thank you for your contribution! Let's discuss this during the website call tomorrow at 6:30 PM IST | 7 AM CST Add it as an agenda item to the meeting minutes, if you would 🙂

[saurabhraghuvanshii]

@Sbragul26 any updates?

[Sbragul26]

@saurabhraghuvanshii I completed some improvements earlier, but I don’t have any new updates right now. Let me know if I should continue working on it.

[github-actions]

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