Hi 1487,
-use an amplifier for your sensor output
-reduce noise by using better/shorter cables
-reduce noise by applying a more stable pressure (by less flow?)
-use some averaging (aka low-pass) filter
It's almost easier (and surely more effective) to suppress the noise at the signal source instead of trying to reduce the noise by averaging the measurement data...
Best regards,
GerdW

using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019