If you hit the free tier wall, don't wait 5 hours. Use these tricks:
MEGA tracks your download limit by your IP address. By using a reliable VPN to change your location, you can reset your quota and keep going. MEGA.NZ DOWNLOADER (2019)
Use MegaDownloader ’s "Streaming" feature to watch movies while they are still downloading. If you hit the free tier wall, don't wait 5 hours