no matter the situation, turn speed and boots should NOT be taken into account
if you really need a winner or loser, take whoever is fighting for the first or last X spots and host a new (RR?) tournament with those X people (for X == 2 a rematch will do).
if your RR has another tiebreaker, repeat with the remaining people that still have the same rank, eventually you end up with a head to head match that has 1 winner or loser
EXAMPLE
player original tourney tiebreaker tourney tiebreaker tourney #2 head to head
A 1st 5th
B 1st 1st 1st 1st
C 1st 1st 1st 2nd
D 1st 4th
E 1st 1st 3th
F 6th
G 7th
H 8th
would give a final result of:
B 1st
C 2nd
E 3th
D 4th
A 5th
F 6th
G 7th
H 8th
this will obviously require a lot of effort from the players, so if the ranking is less important, just call it a tie and get over with it