The 21-year-old moved to the Merseyside outfit from Roma during the summer but has since been put under pressure after the Reds failed to bring in a new striker, despite allowing Andy Carroll to leave for West Ham United on loan.
"Fabio settled immediately," De Marchi told romanews.eu. "He has already been in England and he already knows the Premier League's atmosphere and environment.
"He spent an extraordinary season with Roma but when he got Liverpool's offer there were several assessments with the club and at the end Fabio decided to accept to go. The presence of Brendan Rodgers on the bench surely had an influence."
Borini is expected to start in Rodgers's side for their trip to Sunderland this weekend.