OpenSpeedy is an open-source tool designed to modify the execution speed of applications and video games. It functions by manipulating system-level time-related functions, allowing speed adjustments for both x86 and x64 processes. The software employs user-space (Ring3) hooking techniques to intercept time-related calls without affecting the system kernel. Its technical implementation focuses on modifying critical APIs such as GetTickCount, timeGetTime, QueryPerformanceCounter, and game engine-specific timing functions.