Berg's Rovers crushed Peterborough 4-1 at London Road with Scotland international striker Rhodes continuing his fine week with a hat-trick.
Rhodes scored twice for Scotland in Luxembourg in midweek and Berg feels Blackburn will continue to improve if they are able to provide him with consistent service like Saturday evening.
Berg said: "It was a fantastic feeling to see my team produce a performance like that.
"Crystal Palace had needed two very late goals to beat Peterborough and Brighton had to score in injury time to do it, so going in front so early was key.
"The difference between that display and our previous games was the quality of our play in the final third.
"We already know Jordan is a great finisher and he proved that again. He did brilliantly in League One last season and is already doing well in the Championship. Hopefully next season he will be in the Premier League with Blackburn.
"Providing we feed him with opportunities he will score lots of goals. It was a shame we conceded a late goal as that stopped it being a perfect day."