fix: improve assets perfs + fix blurred balances and prices

[salimtb]

Description

Related issues

Fixes: #12724

Manual testing steps

1. Build android project locally
2. Add your account or create new one
3. switch btw network ( the perfs should be good )
4. switch btw popular network and current network on the token list and check the perfs
5. the list of assets should be displayed quickly

Screenshots/Recordings

Before

After

Screen.Recording.2025-01-06.at.16.18.39.mov

Pre-merge author checklist

• I’ve followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[github-actions]

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Commit hash: 0517725
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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 67.98030% with 65 lines in your changes missing coverage. Please review.

Project coverage is 60.60%. Comparing base (8dacf7b) to head (cd8e3c8).
Report is 15 commits behind head on main.

Files with missing lines	Patch %	Lines
...onents/UI/Tokens/TokenList/TokenListItem/index.tsx	58.58%	23 Missing and 18 partials ⚠️
app/selectors/tokensController.ts	22.22%	5 Missing and 2 partials ⚠️
...nts/UI/Tokens/TokenList/PortfolioBalance/index.tsx	50.00%	2 Missing and 4 partials ⚠️
app/components/UI/Tokens/index.tsx	89.13%	0 Missing and 5 partials ⚠️
...mponents/Views/NetworkSelector/NetworkSelector.tsx	69.23%	4 Missing ⚠️
app/components/hooks/useDebouncedValue.ts	75.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12843      +/-   ##
==========================================
+ Coverage   60.06%   60.60%   +0.54%     
==========================================
  Files        1900     1912      +12     
  Lines       42513    42723     +210     
  Branches     5612     5744     +132     
==========================================
+ Hits        25536    25893     +357     
+ Misses      15250    15076     -174     
- Partials     1727     1754      +27     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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[metamaskbot]

Bitrise

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[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
82.5% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud