How to design a high-converting website for a home fitness equipment store?

Hi everyone,

I’m currently working on a website project related to home fitness equipment and wellness solutions, and I’m trying to improve both design and user experience for better conversions.

The goal is to create a clean, modern layout that highlights products like treadmills, exercise bikes, and strength equipment while keeping navigation simple and engaging. I’m especially interested in:

Creating responsive design for mobile and desktop
Improving product page layouts for better conversions
Optimizing page speed and performance
Structuring content for SEO (keywords like home gym equipment, fitness machines, etc.)

I’ve been analyzing some industry websites such as Johnson Fitness & Wellness Middle East to understand how they present their products and user journey.

For those experienced with Themler:

What are the best design practices for eCommerce-style fitness websites?
Are there specific templates or customization tips that work best?
How can I balance design and SEO without affecting performance?

Any guidance, examples, or resources would be really helpful. Thanks in advance!