I think you can test this yourself.
http://m.mlb.com/news/article/165096680/billy-burns-leads-statcast-speed-rankings/
The slowest competitive home to 1st times in 2015 were:
394. Wilson Ramos, RH, 4.89 seconds
395. Albert Pujols, RH, 4.92 seconds
396. Michael Morse, RH, 4.94 seconds
397 (tie). Billy Butler, RH, 4.95 seconds
397 (tie). Curt Casali, RH, 4.95 seconds
Fastest
1. Burns, LH, 3.85 seconds
2. Gordon, LH, 3.91 seconds
3. Hamilton, LH, 3.95 seconds
4. Delino DeShields, RH, 3.96 seconds
5 (tie). Jose Altuve, RH, 3.98 seconds
5 (tie). Ichiro Suzuki, LH, 3.98 seconds (at 41 years old!)
So just head to a nearby park, map out 90 feet distance and get someone to time you. Also record it and post the video on here so we can be sure that your distance and stopwatch person were both accurate.