I've been attempting to use the rodeostat to perform AC voltammetry as per the example and using the 50k dummy cell which gives a nice output at very low sample rates however at higher sample rates (though still quite low) of 115 Hz I've found the output is heavily affected by the sample rate.
I also implement the firmware changes as mentioned in this post however noticed no effect.
Any advice on how to overcome this would be greatly appreciated
2 Hz

115 Hz

I've used the following parameters
Run parameters
t0 = 0.0 # Transition start time (s)
t1 = 8.0 # Transition stop time (s)
v0 = -0.1 # Initial voltage (V)
v1 = -0.9 # Final voltage (V)
amp = 0.1 # Sinusoid ampliude (V)
per = 0.5 # Sinusoid period (s)
dt = 0.005 # Time step for setting voltage and measurements
t_total = t0 + t1 # Total experiment duration
volt_func = create_sin_linear_func(t0,t1,v0,v1,amp,per)
# Create device object, set voltage/current ranges and run test
pstat = Potentiostat('COM5')
pstat.set_volt_range('2V')
pstat.set_curr_range('100uA')
t, volt, curr = run_manual_test(pstat, volt_func, dt, t_total)