POE2 Coop Build Compatibility

Hi, I need some advice on coop build compatibility.
Me and my wife are almost finished with the Interlude, however, while her Arc Stormweaver does very well, my EDC Chronomancer has fallen behind damage wise since Act 4. Even more problematic is that her Arc kills very efficiently and I am not getting a chance to do much. Hence I'm starting to think EDC and Arc builds are not very compatible with each other in coop. Any advice what build I could change to that works with Arc in coop?

Bump. Any recommendations?