Toad opens 3mb file for about 30 sec if I don’t use Large Script Mode but MS opens such file i (4274996)

Toad opens 3mb file for about 30 sec if I don’t use Large Script Mode but MS opens such file in 3 sec 

In addition, if I open a 3MB script in Toad for SQL Server editor. It is crucial that this file is opened because I constantly referencing this file to create updated objects. As soon, I do a simple action, like highlight a small table | Generate SQL | To Editor | Select statement it bogs Toad for SQL Server to standstill.

 It will take minutes to up the generated SQL.

WORKAROUND:
Enable the Large Script mode option