When one of us is working in an event record, the other person cannot feasibly get anything done in the same record. The performance is so slow it takes forever to navigate through the record or even scroll through the list of participants. It's so slow, we wait until the other person is out of it because it isn't worth the amount of time required to do the simplest task. However as our event is coming up soon, it is necessary for us to be able to simultaneously access the event record.