JPEG 2000 compression is typically regarded as lossless and doesn't alter the data. The compression options like simple, complex1, complex2, complex3, jpeg can impact the packing. While highly efficient for compression the decompression process can be slow, any alteration or compression of the data may be done by VR before packing or may involve a source different from NOAA.
In addition to JPEG 2000 compression use tools like
jpeg compressor for seamless and effective image optimization, supporting various formats like JPEG, PNG, SVG, and more.