Increase duration in nsys profile

[KumoLiu]

Fixes #1905

Increase the profiling duration in nsys, as the KeyError seems to occur because the profile did not have sufficient time to reach the post-processing step.

Checks

• Avoid including large-size files in the PR.
• Clean up long text outputs from code cells in the notebook.
• For security purposes, please check the contents and remove any sensitive info such as user names and private key.
• Ensure (1) hyperlinks and markdown anchors are working (2) use relative paths for tutorial repo files (3) put figure and graphs in the ./figure folder
• Notebook runs automatically ./runner.sh -t <path to .ipynb file>

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