Shopify Expert Needed: HTML Code edits & Site speed improvement

We have a Shopify website that was tranferred over from a Wix design. We need some functional improvements such as:

Website: Africaunionmerchandise.com

- Currency Converter is broken
- Tags must be revised
- Embedden Video add
- Page error: Images not appearing (Code issue)
- Payment Portal issue
- Site Speed improvement
- General Site Improvements
- Connection of CRM, Zapier, Semrush

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