How much Kustomer slows a Shopify store
We measured Kustomer on 29 Shopify ecommerce stores. This is the processing time it added on the typical store's homepage.
Moderate (100 to 300 ms)
Kustomer was moderate on 66% of the stores it was measured on.
Last measured on September 25, 2026.
All apps in the index · How we measure these numbers
ShopWeight isn't affiliated with Shopify or with any app maker listed here.
How it varied from store to store
The same app can take more work on one store than on another. It depends on how the app is set up and what else loads with it.
| Light (under 100 ms) | 7 of 29 stores |
| Moderate (100 to 300 ms) | 19 of 29 stores |
| Heavy (300 ms to 1 second) | 2 of 29 stores |
| Very heavy (over 1 second) | 1 of 29 stores |
Compare Kustomer with other customer support and chat apps
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