His team lost by 319-runs to England at Trent Bridge and now find themselves 2-0 down in the four-Test match series.
India arrived in England on the back of a tour of the West Indies last month, leading Dhoni to rue the number of matches his side have faced.
"Somebody said time is of essence here. We came straight from the Caribbean and didn't have time to play more than one [practice] game. So we are playing seven and not four matches back-to-back.
"[This series] is a continuation of the West Indies tour and we haven't really had a gap. You need to prepare differently [for an England tour]. In this respect the next 10 days are very important."