I have no problems with AI lag inn AOE2 HD version. Just for instance played a chaotic 1.24 hour long game fast speed goth on Arena vs 3 AI on hardest. Nothing, ever.
AI has not been nerfed. Its VEEEEEEEEEEEEEERRRRRRRRRRRRRRRRRRRRRYYYYYYYYYYYYYYYYYYYYYYYYYYY random. The 3 AI's I had one sucked very badly, while the 2 others performed about the same. It differ's so much sometimes - Even if its 1v1.
I have no problems with pathing. All units works the same as it did inn orginale AOE2 for me
Defaulth hotkeys? Erhm, just use your own hotkeys - Who uses defaulth.
Sorry but I have no problems with AOE2 HD version. Had it for about 2-3 months after releases, witch I tough by then they had patched it enough for it to be fine, and it was.