There is a circuits diagram on the Maytech page which makes it easy to connect the remote receiver and the VESC together using the pinout picture on the MakerX page.
VESC App settings:
if you are using firmware version 5.03 (VESC TOOL 3.1) or above – turn off the phase filter, see here for more details
Set App to Use to UART – gives much quicker response than the Maytech recommended UART and PPM.
Use the Maytech recommended Control Type: Current No Reverse under VESC Remote
For quicker response on the remote, change the Input Deadband to something like 3% under VESC Remote
VESC Motor Settings:
Set Motor Current Max to 140A
Do not set Motor Current Max Brake to 0A but some negativa number like -1A
Set Absolute Maximum Current to 180A
Here are some screen dumps to better explain the settings
App to Use: UARTVESC Remote settingsMotor Settings