YOU SAID:

This is doing a lot better than I originally thought it would

INTO JAPANESE

これは私が当初思っていたよりもずっとうまくやっています

BACK INTO ENGLISH

This is doing much better than I originally thought

INTO JAPANESE

これは私が当初思っていたよりもはるかにうまくやっています

BACK INTO ENGLISH

This is doing much better than I originally thought