Stuck on Mojang screen

Every time I try to play Minecraft on my computer since the new launch screen, it gets stuck on the Mojang screen. If I exit the screen it gives me a "(Not Responding)" message and asks if I want to wait or leave. If I only click on it, it gives me the same not responding message with the blue spinning wheel of death. I've tried uninstalling and reinstalling it, and I've also tried to look up many ways to fix it but I never found answers.