help is appreciated The Selachii - Shark Race - (UNOFFICIAL) SSE Port 3.50

[kiramu]

So I downloaded this mod a couple of days ago. Before Skyrim had no issues with crashing or lag. I know that when you add new mods into the game it is recommended for you to start a new game which I did. But for some reason my game keeps on crashing as soon as I get to the pint where I'm supposed to create my character. I don't know if its just the load order or something else but I would like some advice if able. I should also mention that prior to this mod I was running around 125 mods at the same time without any issues.