Just dropping by in case anyone else browses this forum looking for answers... I've been using a VEC Infinity for at least four years now, and was beginning to experience similar lagging/unresponsiveness - even on a new Win10 machine with the latest version of Express Scribe Pro.
Reading Ingrid's experience here, I was inspired to consider the hardware side. Picking up the pedal, I found there were four standard screws holding the bottom plate on. Removing these, I discovered a tremendous amount of DUST built up inside the pedal! After a thorough blasting with compressed air and carefully