Blocks Editor Is Laggy

I am Having a major issue After upgrade,
I have 14000 blocks on screen1 , it was working smoothly while old creator , but now after new creator i its very lagy and choky , i cant move my blocks i need to wait 10 15 second to move 1 block , please do something for it , i cannot reduce my blocks on screen1 @Diego

There are no changes in the new platform regarding how Blockly interacts with the blocks. Can you verify if you have “Performance Mode” disabled in your Preferences? You may try to toggle it on and see if it improves.