If changed attack and energy time, it can improvement thermal performance little bit, around 5'C - 6'C under 5W output load conditions but test not yet of another high watage. Anyway , if changed attack time 10msec to 5msec and engergy time, 10msec to 5mesc, will get body temp drop 5'C. The key points are reduce attack, energy time but it should listening test first before changed those time factors becasue each coustomer has different audio quality specification.