Grove GSR Sensor Displaying low values from 0-50 when connected to fingers

I recently bought a Grove GSR Sensor and connected it directly to an Arduino following the instructions on the website above. I calibrated it to 512 before connecting it to my fingers, but after, when I connected it to two fingers on my hand and opened the serial plotter on my Arduino IDE it constantly displays values from 0-50 and nothing greater than 50 even if I breathe deeply or laugh, etc. And of course, when I take my fingers out of the sensor, it goes back to 512. I am a pretty sweaty guy, is this why these values are constantly so low? Should I tinker with the sensor’s resistor value? Thanks!