The game gives me a "Not Responding" about 1-2 seconds after loading into the main minecraft menu. This occurs after the Mojang logo screen. I have tried reinstalling the game, my drivers, java etc multiple times but nothing seems to make a difference. Does not output an error log.
Environment
Windows 10 version 1709
Geforce Driver 391.24
Java 8 Update 161 (64Bit)
i7-6700HQ, 16Gb RAM, GTX 1060(3Gb)
Does MC-124460 describe your issue? If yes, does quitting Discord solve it?