[Bug]: mUSD conversion screens slow to load when converting eligible token

### Describe the bug

When tapping "Get 3% mUSD bonus" for an eligible token and going through the convert flow, the conversion screens take a long time to load. This is a performance issue — the screens should load promptly but instead there is a noticeable delay. Tapping Max button is also a noticeable delay.

### Expected behavior

Should load promptly.

### Screenshots/Recordings

https://consensys.zoom.us/clips/share/TlszuZyRQbSI2UdO1q0lGA

### Steps to reproduce

1. Have DAI tokens on Ethereum network
2. Tap "Get 3% mUSD bonus" CTA for DAI
3. Proceed through the mUSD convert flow
4. Observe slow loading on the conversion screens

### Error messages or log output

```
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### Where was this bug found?

Internal release testing

### Version

7.69.0

### Build number

3954

### Build type

_No response_

### Device

Samsung Galaxy A42

### Operating system

Android 13

### Additional context

_No response_

### Severity

_To be added after bug submission by internal support / PM:_

Reproduce the mUSD conversion flow with DAI on Ethereum using the stated Android device and app version, including the Max button. Trace the conversion screens from the reported CTA and measure the delays; done means the screens and Max action load promptly without the reported delay.

Written by the indexing model from the issue text.