why is the world so slow to load

Please do not duplicate your own bug reports.

Thank you for your report!
We're tracking this issue in MC-205793, so this ticket is being resolved and linked as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.

Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
_{-- I am a bot. This action was performed automatically! Please report any issues in Discord or Reddit}

probably your computer it's old or not enough powerfull to load minecraft correctly.