Debut of DirectX 12. Windows 10 launched with full DX12 support and Hitman - as one of the first titles released for the PC platform - supports it. Instead of improving the gaming experience, the new interface seems to be the source of frustration on quite a few systems. Here's our report, complete with the benchmark results.
http://www.notebookcheck.net/Hitman-Notebook-Benchmarks.161323.0.html