Data Fetching Issue in Python Trading Algo (time problem)

I'm experiencing inconsistent data fetching times in my Python-based trading algorithm. The data is being sourced from an external API, specifically historical data for the super trend indicator in relation to the VWAP.

Key Issues:
- Inconsistent data fetching times which disrupts the performance of the algorithm.
- The data is being sourced from an external API, so any changes or issues on the API's end need to be considered.

Ideal Skills and Experience:
- Proficiency in Python, particularly in relation to algorithm development.
- Experience working with external APIs.
- Understanding of trading indicators, specifically the super trend and VWAP.
- Ability to troubleshoot and resolve data fetching issues.