Custom JS code and API integration in my website

[MatAnt]

I am currently working on a website. Now, I want to make my website more dynamic and responsive. So, I want to integrate third-party APIs into my website. During custom integration, I faced some serious issues. Now, I am trying to add some JS custom codes to make custom buttons more interactive. But, the whole integration process is not working properly. After adding APIs, the loading speed has significantly reduced. I have watched multiple videos on YouTube but can not figure it out. Many empty spaces have been created due to the failure of APIs. 

[PaulNewton]

Hi @MatAnt 👋  Your being incredibly vague, you need to drastically improve your problem statement or hire a consultant to fill in such massive gaps.

Other people are not mind readers, we don't see what you see or know what you have done.

Respect others peoples time and communicate detail without it having to be extracted from you.

READ and re-examine how you describe things: 

•  https://community.shopify.com/c/blog/how-to-get-support-from-the-community/ba-p/1399408 
• https://stackoverflow.com/help/how-to-ask
• http://www.catb.org/~esr/faqs/smart-questions.html 
• https://stackoverflow.com/help/minimal-reproducible-example 

Merchant or developer I guarantee the above pay dividends to the amount of time being wasted.

Your not get things done because your making it so others cannot even understand you.