I am acquring data from OSRAM SFH7050 sensor board via AFE4403EVM GUI. However, even with extreme care and stillness of my hand and wrist, I am not able to get pure signal without noise. I have added images of the kind of signal I am getting, along with the orientation of my hand while acquiring the data. i have set the sample rate as 125/second and my number of averages is 10. Please suggest any tips to get better data.