As stated, 90 mins is plenty of time.
Bolt or inDrive will be less expensive than Grab.
The Miracle Lounge and the Coral Lounge are available for Priority Pass holders; of the two, I normally choose Coral because it offers a free 15 minute shoulder massage (if you can find time in the queue before you have to leave.) Food is pretty similar between the two - since they're co-located, you can also switch from one to the other if you choose.
Both lounges are on the way to gates 51 and up.