Using Waapi break the performance score : score NaN

### FAQ

- [x] Yes, my issue is not about [variability](https://github.com/GoogleChrome/lighthouse/blob/main/docs/variability.md) or [throttling](https://github.com/GoogleChrome/lighthouse/blob/main/docs/throttling.md).
- [x] Yes, my issue is not about a specific accessibility audit (file with [axe-core](https://github.com/dequelabs/axe-core) instead).
- [x] Yes, my issue is not answered by [other FAQs](https://github.com/GoogleChrome/lighthouse#faq).

### URL

https://starter2025.netlify.app

### What happened?

Using waapi for example with `animejs v4` and his waapi api : `waapi.animate( element, {opacity: [0,1], y:[-30,0]} )` break the performance metrics.

More exactly it display NaN in both : `LCP` & `TBT`

### What did you expect?

get a normal performance score.

### What have you tried?

removing waapi and do normal easing is working but i might want to use waapi.

### How were you running Lighthouse?

Chrome DevTools

### Lighthouse Version

12.5.1

### Chrome Version

136.0.7103.93 (Official Build) (arm64)

### Node Version

_No response_

### OS

Mac Os 15.4.1

### Relevant log output

```sh

```

Reproduce the report at https://starter2025.netlify.app in Chrome DevTools using Lighthouse 12.5.1, first with the WAAPI animation and then without it. Compare the LCP, TBT, and overall performance score; done means the affected metrics and score remain numeric when the WAAPI animation is present.

Written by the indexing model from the issue text.