amnesia is lagging badly can anyone help

[Warriors Curse]

well my graphics card is ati radeon x1050 as i cannot afford anything better anytime soon but my pc is windows 7 if this helps. but i was reading another thread a few days ago (before i made my account on here) and the person on the thread sounded like they had the same problem as me or something similar and they solved it so i was just think since then that i can sort this out i just dont understand what i need to do to sort it out. thanks Mine Turtle.

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i couldnt see the image under your writing if thats important.