OLD Lathe conversion to a CNC

Hello again, it's been a while. I'm now back working on the lathe machine. I connected the Modbus to the X and Y axis servo motors and also to the spindle – all working fine. I can read the load values from the servo motors without problems. But there is an issue with the spindle load display. Sometimes it shows too many zeros after the decimal point. I tried to fix this with Python code to cut the extra zeros, but I couldn't make it work. Has anyone had this problem before?
What is the easiest way to fix it?