chess.com vs fide rating comparison

what would be the rating of a blitz player in fide who has the rating of 2000 in blitz on chess.com

What's funny about this thread was that someone claiming to be a person who has a FIDE 2125 rating posted the exact same thread name, and blocked me when I told him that his FIDE performance was closer to 1500.

And that estimation was even generous of me, considering he had lost games in 12 moves to players rated ~1500-1700 rapid on this site, and lost to an 1100 in Daily (!!) by missing a mate in 1 in a completely winning position. 

My blitz rating is in the range you're describing, and my USCF is 2027, which computes to ~1927 FIDE.

I would like to claim a higher "real" rating (I believe I'm closer to 2100 USCF), since my performance ratings have all been much higher in past tournaments (2000+, and a few 2200s), and I've shot up in rating very quickly, but only the official rating counts for now. 

I do not consider myself a strong speed player, especially because I don't play speed chess a lot. However, I'm definitely OK, as I have trained in speed chess to make myself better in time pressure.