Consider retrieving data for multiple instruments in a single request, thus reducing the number of requests you're sending. See this previous discussion on this forum:
https://community.developers.refinitiv.com/questions/16321/what-are-the-thresholds-for-api-calls-via-the-pyth.html
You may also find this thread useful
https://community.developers.refinitiv.com/questions/17206/read-timed-out-error.html