RNN is learning very slow

Hello! So, I followed this tutorial on this website, to build an RNN from scratch with python. I have followed it to a T, and used all of the variable numbers and values illustated in the article. The only issue is, that it is learning at an extrusiatingly slow rate, and I have no idea why. In the video, the author got it to predict almost perfectly after only 25 runs, but I can barely get the loss down 500 in 25 runs. Can you guys help me please?

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