Fixing Interaction to Next Paint Issues in Visually Built Landing Pages

The Hidden Performance Crisis in Visual Page Building Picture a marketing team launching their biggest campaign of the quarter. The landing page looks stunning. The drag and drop builder produced a layout with rich media, third party review widgets, and interactive product galleries. The team celebrates going live. Then the analytics arrive. Conversion rates plummet. Bounce rates spike. Mobile users abandon the page within seconds. The culprit is not the design or the copy. It is Interaction to Next Paint, the Core Web Vital that measures how quickly a page responds to user interactions. With INP replacing First Input Delay as a stable metric in March 2024, visually built pages now face scrutiny they never anticipated. Visual page builders empower marketing teams to create sophisticated landing pages without developer intervention. Yet this independence often comes with a performance cost that remains invisible until it impacts revenue. Heavy JavaScript bundles, unoptimized event handl