In the terminal area, bad characters are returned from the ESP32.
A simple check with an other IDE, the EsPy IDE, demonstrates that this does not come from the microprocessors but from an approximate management of communication in serial mode.
example of code :
For i in range (1,1000):
print(i,"baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
PS : My english is also appoximate.