How to boost up magneto e-commerce website ?

You can use social media channels to promote your website like Facebook, Instagram, Pinterest. And you can generate backlinks by doing some off-page activities to get in google ranking

If you have e-commerce website then first you have to try SEO friendly on-page for your website to rank better in search engine,

• You have to find longtail keywords for your products and services so user can easily find from search engine
• Search engine Requires responsive design so create responsive design to rank high
• Create user-friendly Design: Try a design that user can easily find, they are looking at your website

if you want to boost up your lead. you can promote in Instagram.

You need to first make sure your Magento Website load fast , as magento is resource consuming script , It requires dedicated resources to host Magento. Fast load will directly improve website SEO performance , then you need to optimize Magento and server to perform good. We basic is correct you can start promoting then Social media website like facebook,twitter, Instagram, Pinterest etc.