The VT2510 is only capable of outputting a signal to 3 displays at any given time. In order to achieve all 3 external displays, make sure to disable your laptop screen before enabling the 3rd display. If you are unable to disable the laptop screen, make sure to set one of your external monitors as the default display.
Resolution and multi-monitor support will depend on the version of USB-C port as well as the HBR version or if the laptop utilizes the integrated GPU.