The ESP8266 module in older Gateways like the Premium II can be upgraded to another module in the same format.
The MH-ET Live ESP32 module was a good choice to upgrade the ESP8266 to an ESP32 chip.
Now available in the webshop a soldered and LilyGo T7-S3 board with an ESP32-S3 chip and 16MB Flash and 8MB PSRAM. It’s programmed with EMS-ESP for your convenience.
This new upgrade module is so powerful you probably never need any other upgrade again.
For the ESP32-S3 a different bin file is available on the EMS-ESP repository for EMS-ESP 3.6 and later.
For upgrade instructions see the wiki.