Requirements:

1. Skyrim SE with most up to date patch
2. Skyrim Script Extender
3. SkyUI based MCM Menu

What is it?

This will allow you to adjust timescale at will, via MCM menu. Obviously you'll need both, SKSE and SkyUI for this to work.

Why such a Mod?

Standard first thing for me to mod since the days of Morrowind, is the timescale, as I always felt time was passing on much to fast. Also, in Oldrim this was packaged inside my overhaul, and so it should serve me as first instance, to bit by bit recreate my setup for SSE.

So will you finally start porting your mods?

Indeed I'll do. But this is going to be a very long run I'm afraid. So patience is virtue.

I heard everything under timescale 6 potentially breaks the game?

Whatever. I play with 5 as standard setting. Play like this since Morrowind, had it in Oblivion, and now in Skyrim. Never figured a problem. I wouldn't recommend lowering more then 5, except for the lulz you could try 0?

Source?

Inside the .bsa. You'll figure how to unpack I'm sure. There's actually two source folders, as I couldn't figure which is the source folder to correctly put the .psc's inside. Beth had the brilliant idea to restructure source folder, which forces you to manually put any potentially source files into place. Changing a running system is always a foolish idea...I bet the consolers are to blame...-.-