I was just having "second thought" about the course after reading the manual because I was afraid I'll be a burden to whoever my dive partner would be. My PB now is DYN 50m, STA 3:00, CW 45', seems like a bare minimum to take the intermediate course.
Further to the great advice that you've already gotten, what you do in a PFI class has no bearing on anybody else. In other words, you won't be holding anybody back, no matter that. Everybody has an opportunity to perform to their full potential. Having said that, as mentioned by others, based on my limited experience, your current ability is probably at or better than average for the typical intermediate student.