So the gain of the op and the output side will be the same?Hi,
In that circuit first get rid of that input stage added to Vin.
Then change C6 and C7.
I looked at the theory with the two extra gain stages and the steady state error goes down lower as the gains go up.
But in your circuit there i think you can change C6 and C7 by a factor of 1/10 and get better results, but you can try lower too. So instead of 2.2uf use 0.22uf and see if you like the results both in theory and in the simulation. If not you may have to go lower.
Going down in C by a factor of 1/10 means the steady state error goes down by a factor of 1/10^2 which is 1/100. So if you stated with a SS error of 0.366 it will go down to 0.00366.
The key point is increasing the gain lowers the steady state error.