The modern web prioritizes speed, a trend highlighted by Vercel's launch of Next.js 11 with a focus on Google's Core Web Vitals, which influence search rankings. Clerk, however, emphasizes the often-overlooked speed of user sign-ins, discovering that Social Sign In options, initially placed below email sign-ins, should take precedence due to being faster by an average of three seconds. This change resulted in a shift where Social Sign In began to outpace traditional email and password methods. Despite the growing interest in making passwordless flows a primary option, Clerk recommends keeping them as a fallback due to their slower average completion time of 35 seconds. Clerk also addresses the common yet underestimated "edge cases" of Social Sign In, ensuring seamless user experiences regardless of sign-in method, which often involves users switching methods over time. Clerk's prebuilt Sign In UI offers developers a way to integrate customizable and efficient sign-in forms into their applications, aligning seamlessly with company branding while continuously seeking to enhance user experiences through data analysis and technological advancements.