I am trying to compare the encryption and decryption speed of the RSA and the DRSA scheme with same public key $(n, e)$ and private key $d$ (using SageMath). For $1024$ bits long $n$, I got the following data
Encryption of RSA(CPU/Wall time in sec): 0.36/0.66
Encryption of DRSA(CPU/Wall time in sec): 0.01/0.03
Decryption of RSA(CPU/Wall time in sec): 0.37/0.60
Decryption of DRSA(CPU/Wall time in sec): 0.71/1.15
I am confused whether this result is correct or not. According to my experimental result, the encryption of DRSA scheme is 36 times faster than the encryption of RSA scheme. In this case, can anyone help me?