WooCommerce speed affects sales. A slow catalog, cart, or checkout increases the number of abandoned purchases.
Clean up products and images
Large photos, too many variants, and heavy plugins can slow a store down considerably. It's worth compressing images and removing unused extensions.
Check PHP and cache
An up-to-date PHP version and a properly configured cache help cut response time. With a store, though, you need to be careful that caching doesn't break the cart and payments.
Choose stronger hosting
If the store gets more traffic, a small standard hosting plan may not be enough. WooCommerce usually needs more RAM, CPU, and a fast disk.
Checklist before switching hosting
Measure TTFB and panel response time, check the PHP version, OPcache, query count, and heavy cron jobs. Then optimize images, cache, and plugins. Only after that should you judge whether the store needs more CPU, RAM, and I/O.
If the store still slows down at the cart or checkout, compare WooCommerce hosting and the WordPress/WooCommerce speed-up service. Keep a backup and run a test after every change.