I was running version 4.4.5, and had about a dozen captures open. I noticed that everything was extremely slow, so I looked in task manager and saw that each Wireshark process was consuming anywhere from 6 to 10% CPU. None of the captures were very large, perhaps 100 - 200 packets. But just sitting there they were all consuming that much CPU. I tried downgrading to 4.4.4, 4.4.3, 4.4.2, 4.4.1, and they all were using that much CPU. So I downgraded to 4.2.11, the previous listed stable version. It's sitting at 0% for most, 0.1% for a couple. Nowhere near the CPU utilization as 4.4.x. Why would Wireshark use so much CPU for a static small capture just open?
I am running Windows 11 on an HP Elitebook with an 8th gen i5 and 16 GB RAM.