It wasn't too long ago that the tennis cognoscenti were complaining about how boring grass court tennis was with the quick points. Ace. Service winner. Serve, return, easy knock-off volley for server. Ace.
I understand the All England Club has slowed down their lawns by going to a different strain of grass. That and the dearth of S&V'ers has led to what we see today. Improvement? Depends on whom you ask. Certainly the points are a little longer which was the goal the All England Club had.