How to move faster between chords. Here are some tips:
1) Focus on two chords and strum each of those once. For example, G – Em, then Em – Am, then Am – D, finally D – G
2) Keep your strumming constant – Don’t stop strumming… even if the chord isn’t there!
3) Lift off on the “4 +” of each rhythm to get to the next chord on the “1”. If need be lift off even earlier!