The HD tweak Sys.ReduceCpuUsage reduces the game's load on the processor, but when using mice with a high polling rate (DPI), the game starts to lag. The tweak is enabled by default, but it didn't work on previous HD versions. You can disable it in the tweaks by setting the value to 0. Alternatively, you can try to reduce the mouse's polling rate somewhere in the system.
The HD tweak Sys.ReduceCpuUsage reduces the game's load on the processor, but when using mice with a high polling rate (DPI), the game starts to lag. The tweak is enabled by default, but it didn't work on previous HD versions. You can disable it in the tweaks by setting the value to 0. Alternatively, you can try to reduce the mouse's polling rate somewhere in the system.