Yes, it can take longer to get scores back if the student has double test time, or takes the test over a span of several weeks. It can take about five weeks in those instances. It can also take longer is a student takes the test outside of a test center, or with special circumstances. Some students take the test in their high school guidance center, or in a private room. Some students have a transcriber who fills out the answer key for the students.
For the routine time and a half student who takes it at a regular facility, the test should be scored in the same time as the majority of test takers.