Complex sentence: Speed Dreams can load different physics engines to use during races; written in C++, they are software modules executed at every frame to compute parameters such as the car's position, speed, damage, collisions, suspensions.
Split into simpler sentences: Speed Dreams can load different physics engines to use during races. Written in C++, they are software modules executed at every simulation frame to compute the cars' parameters such as position, speed, damage, collisions, suspensions.