Spongey brake feel

[dragoonmc]

Hey guys,
I have noticed that my brakes seem to have a lot of travel and not a really solid feel like my friend's car does.

It seems like there may be a vacuum leak as when I first push the pedal it pumps up early then slowly sinks with the same amount of pressure applied.
I saw there were a few reports of leak brake boosters on here and was wondering if it was actually in the booster or in a line going to it that might be repairable some how.