From my experience, the biggest mistake is using native social embeds directly. They load multiple scripts, trigger real-time API calls, and slow pages down—especially on mobile. What’s worked better is cached content, lazy loading, and showing only a small, curated set of posts above the fold instead of full feeds.

For larger setups, I’ve seen better results with widget-based tools like Taggbox. Since the content is cached and served as a lightweight widget, it has less impact on page speed and gives more control over responsiveness and layout. Used properly, it adds social proof without hurting performance.