Onset Delay Using Chronos

My lab recently purchased a Chronos device to help with sound distortion and timing difficulties for our MEG experiments. Specifically, one of our auditory oddball tasks has been giving us some trouble. I'm using Chronos as my current audio output device but I am still getting long and variable sound onset delays (see below). We're using Eprime 3.0 on a computer with Windows 10. The structure is listed below. Any suggestions for getting our sound delays down would be welcome.

Also of note, we are currently using a version of this task in Eprime 1.0 and the timing is fine...we just really want to get everything up and running on 3.0 and on a newer computer.

Thank you!