Large signal with DC offset matching to ADC with input centered around 0V
You have a symmetrical power supply, so you can make use of that instead of squeezing the input signal only in the positive voltage range.

Change your voltage divider to get output values between 0 and 5V instead of 0 and 2V. Then use a summing amplifier to add -2.5V to the signal. This will give you a \$\pm 2.5V \$ signal.



I changed a few details in your circuit and edited in my proposal. As you can see the output of the first opamp is now significantly less loaded (only 0.5mA max in comparison to 10mA). The cut off frequency of the low pass filter is a little bit higher at 800mHz, if that is to much you can still change the values of the voltage divider or the capacitor. You probably have to finetune R5 to get an exact offset value, if that is important.



Plot over time, \$V_{in} = 24V_{pp}\$ with 12V offset and \$V_{out} = \pm 2.5V\$:


Plot over frequency, cut off frequency at 800mHz:


I left out any decoupling capacitors for simplicity, you obviously should add some in the real implementation. Also, because the resitor values became quite high, it might be benefical to add a small cap over R4 and from the inverting input to ground to reduce noise.