ColdFenix

It starts pretty good and fast paced, although the MC's rapid progress doesn't have a great explanation and feels unjustified. But the big problem comes the moment he starts at Hogwarts. The story just slows down to a crawl with unnecessary excruciatingly detailed explanations of every little thing the MC does. 50 chapters of nothing interesting happening and little to no progress in the story becomes normal. The MC also seems to also loose his motivations to become stronger like protecting his family or changing the wizard world to stop discrimination and he basically becomes a normal slightly more talented student who doesn't train much and barely has any progress in his abilities. If you want to read a slice of life novel without much action in the HP world you might still like this one but if you expect anything to happen you will probably be dissapointed.