Since the turn of the century, La liga teams have won 10 UCLs compared to 4 from the EPL. La liga teams have won 11 UELs compared to 3 from the EPL. The fact of the matter is that Real and Barca alone have won more UCLs just this last decade than all EPL teams combined since the competition was renamed.
In comparison, La Liga's teams are happy to pass the ball around in their own half, prioritizing possession over attacking the opposition's goal. As, in England, there is a strong emphasis on speed and athleticism, English Premier League fans have a tough time getting used to slower soccer elsewhere.