Recommended configuration with HA offers

1

Prestashop 

1. Perf setting :
MySQL Caching type : put File System

2. Modules to deactivate for SURE to avoid speed issue at slave servers :
Layered navigation block v2.2.0 - by PrestaShop
Catalog evaluation v1.5.0 - by PrestaShop
Catalog statistics v1.4.0 - by PrestaShop
Browsers and operating systems v1.3.1 - by PrestaShop

3. Modules to deactivate : Highly recommended
Visits and Visitors v1.6.1 - by PrestaShop
Stats Dashboard v1.4.1 - by PrestaShop
Data mining for statistics v1.6.2 - by PrestaShop
Visitors origin v1.4.1 - by PrestaShop