I have a Sony A9 II, and I recently updated it from the 2.00 firmware to 3.20. After updating it, I noticed that when I have a third-party lens attached and turn the autofocus on while in AF-C, the frame rate drops noticeably. Here's a video showing the issue: https://youtu.be/Mq4m9KHX5CU?si=yKaTmHHQpQqI3bIT]
The frame rate drops only when in Continuous Autofocus; when in Single, DMF, or Manual Focus, the frame rate stays the same.
I have also set my AF-C priority to release rather than AF, and am still having this issue. Does anyone know how to fix this, or is this just normal behavior?