serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

My code honours the timing as specified by the lcd defines , timing that most lcd displays need esp the cheapest and oldest examples of them.
If you send data at a rate that exceeds the specified time constraints as defined it will of course fall. The solution is to either pace data transmission or set the defines to the actual speed the lcd can tolerate . The intent of my code is to match data rate to the real speed that the lcd can manage