[Fix] fix default cuda config

[felixdittrich92]

This PR:

• Fix default algo search value
• adjust default bs
• avoid default config init n times

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 97.81%. Comparing base (8e8ddf4) to head (6452464).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #21 +/- ## ========================================== - Coverage 97.81% 97.81% -0.01% ========================================== Files 63 63 Lines 1922 1920 -2 ========================================== - Hits 1880 1878 -2 Misses 42 42 ``` | [Flag](https://app.codecov.io/gh/felixdittrich92/OnnxTR/pull/21/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Felix+Dittrich) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/felixdittrich92/OnnxTR/pull/21/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Felix+Dittrich) | `97.81% <100.00%> (-0.01%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Felix+Dittrich#carryforward-flags-in-the-pull-request-comment) to find out more.

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