Seems like those who only ever had single visa status ( came on f1, b1, h1 etc and stayed on same or became out of status ) got thier TPS approved quicker than those with multiple statuses ( came on f1, b2.. Then changed to f2, dependent, asylee etc). Also of the first category, those who submitted concrete evidence of continuous presence like paycheck, utility bill, bank statement etc (atleast two of those ) got their TPS approved faster.
So if u guys share ur statuses before and what u submitted, it will be easier to come to a concrete conclusion.