Keeping your store fast and stable

• Use LiteSpeed Cache. It recognises WooCommerce and automatically avoids caching the cart, checkout and account pages. See Making WordPress fast.
• Optimise product images and use WebP.
• Limit plugins to the ones you really use; stores tend to collect many.
• Clean up old transients and orders you no longer need, with care and a backup first.
• Use a real cron job so store tasks run on time. See Replacing WP-Cron.

When the store outgrows shared hosting

Large catalogues, many orders or heavy traffic during sales may need more resources. Consider a bigger web hosting plan, or a VPS. See Upgrading a plan.