In sport jiu jitsu, you will get advantage points for a submission attempt. The opponent must vigorously defend and escape. If it’s a half effort attempt and the opponent wasn’t in any danger, you won’t be awarded an advantage point. The same goes for passing, sweeps, take downs, or near back takes. If you aggressively attack, you put your opponent in a defensive mode. They are less likely to counter, and are basically running for their life. It’s hard to attack when you’re worried about being submitted or attacked. Keeping the constant pressure of attacks, it helps to have a large repertoire of attacks to continuously apply.