The Turbo MOD for DmC changes the game's default speed. This affects both Dante and Vergil (DLC). A backup DefaultInput.ini and an Instruction Read Me are included in the rar. file. Reuploading this just in case if anything were to happen to the file.

Place DefaultInput.ini file into DmC Devil May Cry\DevilGame\Config\

"While in the actual game (inside an actual level or the Bloody Palace, being able to control Dante/Vergil):
Alt+F7 = 10% speedup
Alt+F8 = 15% speedup (RECOMMENDED: This was the speedup originally intended by Ninja Theory upon reaching S-Rank)
Alt+F9 = 20% speedup (same as DMC3 and DMC4 Turbo Mode)
Alt+F10 = 30% speedup (Added in V1.1)
Alt+F11 = 40% speedup (Added by me (Nyx))
Alt+F12 = Disable turbo mode

The turbo mode will affect the entire game: time counters (bloody palace, Devil Trigger), Dante/Vergil, enemies, projectiles...

This turbo mode mod will also effect in-engine cutscenes' speed. Disable it when entering cutscenes unless you plan to skip them.
Turbo state may reset:
- upon loading new levels (does not apply to Bloody Palace rooms)
- upon going back to the Main Menu (does not apply to the Pause Menu)"

Source: Instruction file in rar. file

Update: Updated the rar. file in case you're unable to extract the files (6/17/2022)