u8glib 1306 slow page displaying

Hi, trying to use u8glib on my SSD1306 over, but it works incredible slow looks like delay between pages.

display fills up page by page so I can see it, not fills up instantly, with another libs like Adafuit_SSD1306 or LiquidCristal_SSD1306 I not see that issues, I like instruments of u8glib so I want to make it work properly, any help?

the test code where I fill black and white every seconds

U8GLIB_SSD1306_128X64 LCD(U8G_I2C_OPT_DEV_0|U8G_I2C_OPT_NO_ACK|U8G_I2C_OPT_FAST);
void loop(void) {
        LCD.firstPage();
        do {
            LCD.setColorIndex(1);
            LCD.drawBox(0, 0, 124, 64);
        } while( LCD.nextPage() );
        
        _delay_ms(1000);
        
        LCD.firstPage();
        do {
            LCD.setColorIndex(1);
            LCD.drawFrame(0, 0, 124, 64);
        } while( LCD.nextPage() );
        _delay_ms(1000);
}