Simple test menu using most of Nano's storage space

[Intechgreater]

A simple test menu with only a single analog menu item generated in TcMenu Designer 4.2.2 and compiled in Arduino IDE for an Arduino Nano running a 128x64 OLED display via the Greiman SSD1306ASCII library uses 30092 bytes (97%) of program storage space!
Is that unusual?
Is there anything that can be changed to greatly reduce that?