# Historical Data is Slow with Interactive Brokers If you are connecting with Interactive Brokers, the limitations that they put on loading historical Time and Sales data is too restrictive for data-intensive studies such as Volume Imprint, Cumulative Delta or TPO. They only allow 1000 ticks per request and limit the number of requests. This means any study loading data, especially tick data might take awhile. Interactive Brokers' data servers are quite slow and trying to download tick data from them is incredibly slow. Their data is throttled: With IBKR, we usually recommend an additional feed for historical tick data, such as IQFeed or dxFeed. In case you trade futures, switching to Rithmic or CQG will also make a big difference. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.motivewave.com/knowledge-base/connection/interactive-brokers-connection/historical-data-is-slow-with-interactive-brokers.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.