Well, I had a visit today from a technician for my ISP. He found the outside splitter was made for indoor use, so replaced that. Then, he disconnected an indoor splitter and gave me a new wireless DVR box. End result is slightly better performance:
I am most happy with my results. And when the kids aren’t on, I actually tested at nearly 120 Mbps. We pay for a 100 Mbps line. No complaints now.