Process SN-1 SLC image to a fine pixel spacing

Hello,

Is it possible to process SN-1 SLC (IW) mode in a way that the final product (backscatter sigma0 values) will have better pixel spacing than GRD (IW) product (better than 10x10 m)? or maybe the GRD (IW) product is the best you can achieve with the SLC (IW)?