Victory, who are second on the competition ladder, haven't beaten fifth-placed Perth in their past eight A-League meetings dating back almost three years, with four losses and four draws to their name.
Ahead of their clash at AAMI Park on Saturday night, Muscat said he's been happy with his team's two most recent outings against the the Glory.
"The last few games, results-wise it's been difficult against them, but our last two performances against them have been very good," Muscat said.
"Even across in Perth we should have won the game, let alone come away with a loss.
"Having said that, they're a good team who have a lot to play for as well."
With second spot almost assured, due to a nine-point buffer on third-placed Melbourne City and then Brisbane Roar, Muscat wants his team to deliver a 90-minute performance.
He said their performance, rather than competition points, was more important at this stage of the season, given the position they are in.
"I'm not concerned with making a statement or closing the gap between us and Sydney, they don't concern me as much as performance," he said.
"The only thing I'd like to change is that we perform to our capabilities for longer.
"It hasn't happened often enough this season."
Victory will welcome back defender Alan Baro, who they missed in their 1-0 loss to runaway leaders Sydney last round through illness.
Muscat described Glory winger Diego Castro as a "phenomenal player", who supplied the ammunition to Perth's swag of attacking threats.
He said that the Glory were delivering on the promise they showed early in the season thanks to some stability in their line-up.
In recent clashes, Perth have maintained their attacking brand of football yet still managed to hold Victory out but Muscat felt a breakthrough wasn't far off.
"They held us out in terms of the amount of goals they concdeded but we created a hell of a lot of chances so I'm not really too concerned," Muscat said.
"My main concern is to get a performance up there near our best and the result will look after itself."