I am a Gentoo user my self, and have been following many benchmarks on Linux for a while. When it comes to Linux vs Windows. Linux smashes Windows in everything but gaming hands down.
That includes data transfer, SQL Database querys, file indexing, response, I/O...... I can keep going..... The only thing Linux has yet to conquer on Windows is raw GPU power in gaming performance. With DXVK, Esync, Wine 5.0 and a properly configured kernel you might be seeing a %5-10 lag being Windows when gaming on fully compatible titles.