I am using javacpp/ffmpeg on Windows 10 (2004) and found that loading the native libraries takes longer for Javacpp version 1.5.4 in comparison to 1.5.3. On 1.5.4 it takes roughly 7 seconds to load the libraries, which is in contrast to the 1.5 seconds version 1.5.3 takes.

In the gist below you find timestamped logs of the native libraries being loaded. Without having looked at the loader sources I am surprised to find that more time is spent in loading api-ms-win-crt-*

https://gist.github.com/edwinRNDR/676ea1a75548b31edc07cd699010f75e