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Something with pandas-like capability in a lower level language would be amazing.

More like numpy than pandas but I've used x-tensor (c++) with great success in several projects: https://xtensor.readthedocs.io/en/latest/index.html

Every time I was forced to pandas I miss R data.frame and data.table.

Java has faster multi dimensional array than numpy, e.g nd4j can trivially leverage Intel MKL or even offload to CUDA.

C# has multidimensional arrays. It's not Pandas or numpy, but it's something.