Prestashop 8 Upgrade & Speed Optimization

I need a Prestashop expert to enhance my shop.

Key Tasks:
- Upgrade Prestashop from 1.7.8.8 to 8.2.1
- Fix custom module for 8.2.1 compatibility
- Improve shop speed:
- Optimize modules and code
- Enhance site loading and add-to-cart performance
- Consult on productivity-boosting modules

Ideal Skills & Experience:
- Proven Prestashop expertise
- Experience with module development and optimization
- Strong performance enhancement skills
- Knowledge of productivity-improving modules