# Anti-Flicker Modes
Intelligems adds an anti-flicker functionality to reduce the performance impacts of our JavaScript by default. Therefore, please do not `async` or `defer` your Intelligems script; this is handled internally and will cause flashing on your site if added.
### Anti-flicker Modes
Intelligems offers two anti-flicker modes:
1. Element-specific anti-flicker (default). This will temporarily hide all price elements selected during your integration.
2. Page anti-flicker. This will temporarily hide all site content.
The best mode will likely depend on your individual site; try out both and see which works best. Add the below snippet **above** the Intelligems script tag to enable **page** anti-flicker, mode 2. above.
Remember to replace the `xxxxxxxxxxxx` in the example below with your unique customer ID!
```html
...
// This is the anti-flicker script:
// Your full theme script must go below it, with xxxxxxxxxxxx replaced by your customer ID:
...
```
## My Site is Still Flickering
The default configuration above works for most sites. However, if you are still experiencing flickering on your site, please [reach out to our support team](https://portal.usepylon.com/intelligems/forms/intelligems-support-request). We have several internal tools we can use to help reduce flickering.
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