perf(abc:auto-focus): perf code

[cipchk]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/ng-alain/delon/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[ ] No

Other information

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e9141bb) 93.84% compared to head (7ec51ff) 93.84%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1753      +/-   ##
==========================================
- Coverage   93.84%   93.84%   -0.01%     
==========================================
  Files         316      316              
  Lines        8792     8786       -6     
  Branches     1621     1620       -1     
==========================================
- Hits         8251     8245       -6     
  Misses        483      483              
  Partials       58       58              

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[cipchk]

Preview is ready!