In WhatsMinerTool, what is a difference between parameters of “THS RT” and “THS Avg”?

In WhatsMinerTool, how to see “complete mode”? I only see the compact mode when I open that window.

What is the meaning of the “EnvTemp” parameter in WhatsMinerTool?

If the firmware upgrade fails or the miner IP cannot be accessed in the backend on the browser after entering it, what could be the reason and how should I proceed?

What language is API written in and are there any recommended languages?