Tackling Core Web Vitals in SaaS?

Hey everyone, hope you're all having a productive week! We've been working hard on our SaaS application's general web performance optimization lately and have made some decent strides in overall page load times and responsiveness, which is great. Now, we're really trying to dial in on the more specific metrics, particularly Core Web Vitals. This is where things are getting a bit trickier for us, especially when it comes to our logged-in users. Our dashboards are quite dynamic and data-heavy, full of personalized content and various interactive elements, which makes consistently hitting excellent Core Web Vitals scores a real challenge. We're finding Largest Contentful Paint (LCP) can be pretty stubborn with all the personalized data loading, and Cumulative Layout Shift (CLS) sometimes rears its head when third-party widgets or complex interactive components render. We're past the basic image optimization and caching strategies, and now we're looking for deeper, more practical strategies to genuinely improve our frontend performance and excel in CWV across such a complex, dynamic SaaS environment. What are other SaaS founders and developers here actually using to not just pass, but really crush Core Web Vitals? I'm talking about real-world advice and tools beyond the usual suspects. Really keen to hear some expert insights!