Minecraft always crashes with the Realistico texture pack?

I bought the full version of Realistico for 4 euro. When I turn on the Continuum Shader, the game crashes. I tried to set everything as low as possible. Shortly before the crash I almost always had 90 fps. Is it the game or my PC. Request for solutions

To your pc

That does not help me at all. Can you please not tell me what exactly is it?

It crashed on my fps and I had 150

Should I reduce the max fps rate?

It would be best if you let it completely…

It looks so good. What did you do to the solution?

Nothing, because nothing went except you buy yourself a good graphics card