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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Though, this free asset from Sebastian Lague could get you started. It can move an object (in your case, the camera) at constant speed along a path. If you want the speed to vary along the path, someone will need to code that. I extended his script to increase/reduce the speed of the object depending on the slope of the curve. It worked fine for my purpose.
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