I’m working on a website(LaraCopilot) that gets steady traffic, but the conversion rate is lower than expected.

From a web development standpoint (not just marketing), I’m trying to understand what actually moves the needle.

Some areas I’m thinking about:

• Page load performance and Core Web Vitals
• UX/UI structure and layout decisions
• Form handling and friction reduction
• Accessibility improvements

For those with experience:

• What dev-related changes had the biggest impact on conversions?
• Any overlooked technical factors that affect user behavior?
• What would you prioritize first?

Looking for insights based on real experience rather than general advice.