"I didn't watch it all -- it got a little bit processional," said the Australian.
German Frentzen thinks part of the problem is all the fuel-saving, now that drivers can only use 100 litres from the start of the race to the end.
"I would give them ten more litres in the tank," he told Austrian television Servus TV. "Then they could drive fast for the whole race.
"And I'd drill a hole in the exhaust," Frentzen smiled, referring to the quieter sound of the turbo V6 engines.
However, he said he is supportive of the move to more relevant 'hybrid' technology.
"Rather than spending all the money on a front wing, now they're investing in sustainable technology," said Frentzen.
Daniil Kvyat, a teenage rookie on the 2014 grid, said he is proud to be a part of the 'new' F1.
"I remember seeing cars going 330 (kph) on the Monza straight when I was a kid, but this year we will be going 360 or even more.
"With each revolution, something is lost and something is gained," the Russian told La Repubblica newspaper.