I have used EFU and Askari, both are best. They will insist on tracker installation, but you will have to insist kay naheen mujhay tracker nahee lagwan 
It got better since first Ramzan and summer vacations. But still zero point to Faizabad, I-8, Sohan, Khanna and Koral Chowk are messy around 8 am, 9.30 am and the entire expressway is mad rush just after 6.00 pm.
Today it was Sunday and roads were empty because on the road coming from Islamabad a vip movement was taking place so I floored the car several times and it went easily to 140 kms and rpms remained under 3K, eco zone light was on. The car was stable and quite and did not give the feeling of going so fast, but the meter reading did. For at least 15 kms I drove in the range of 100, 120 and 140 kms and that too on Islamabad Expressway. Great feeling. Average remained 11.8 kms/lit with AC.