Slow performance (since last FW update?)

I have 2 * V2 and 1 * Pan.
V2 + Pan are connected to WIFI 1. the another V2 is connected to WIFI 2.
Since the last FW update I’m having extremely slow performance:

  1. Live streaming: very slow missing secs
  2. Cam settings: 10-15 secs till it opens and then nothing is accepted

It’s 95f (up to 104f) for the outside V2, but for the other V2 & Pan it cool AC (day time).
Any idea?