This mod was created when a friend was doing 1000x and the very start was seemed extremely painful. It was made to make the start more bearable, while most of the game stayed in the value they chose.
You can change the values in the settings menu to your preferred values. You can limit it to 100x or 10x or 1000x - whatever you want. You can change the multiplicative and additive multipliers however you want.
I don't really understand what you are trying to say.
At present, there is no problem. I have found that although the technology research cost multiple can be entered as a number exceeding 1000 when creating a new game, the maximum research cost multiple in the actual game is only 1000x. I originally thought that there was no upper limit to the technology research cost multiple, and I wanted to control the parameters to avoid the later technology research cost becoming a number that cannot be played normally