[jmknpk2]

OOTP baseball includes lots of details. Lots of number crunching. In my typical leagues, I run a season over night. Sometimes with a MLB size league and my typical settings, a season can take several real-life days to simulate.

There are some tricks I've used for quicker long-term simming:
There are some manager settings, league settings, and game settings.

I'm not able to look at the game to give you details at the moment.

One setting is something like "interrupt game for trade proposals", "interrupt sim for injuries", ...
And there is also a checkbox somewhere to set the manager "on vacation", which more or less means the AI (Artificial Intelligence) manages and runs your team. i.e. Your non-human managers make all necessary decisions while you are "on vacation".
I think those are on the manager settings page.

Also, the level of detail can be reduced for quicker simming.
For example, "very high detail" (statistics), "keep all logs", frequency of "automatic backups", "update facegen", almanac generation (I never generate almanacs intentionally...preferring to just archive my leagues manually, external from the OOTP 18 game), etc. which are on the league settings screen(s).