While I do agree that 18 sacks in 25 attempts is rediculous, what were your settings like? I don't think this is anywhere near finished, but I also don't think you have to run 95% of the time to avoid being crushed. While records don't matter here, I'm 5-1 with my only loss being by a TD to the #9 team, and in those 6 games, my run/pass ratio is 54% run, 46% pass. I'd say that's actually pretty balanced, especially considering I have my playbook set up to run to eat clock if I'm leading late in a game or half, so if the game's close, it's probably more like 50/50.
In general, I don't thinks sacks are all that high either. I've been sacked 23 times in 180 dropbacks. That's only 13%. I average 30 passes per game, and 23 sacks averages out to 3.8 sacks per game... Doesn't seem super high to me... maybe a tad high, but not extreme. On the other hand, I'm averaging over 5.3 sacks per game, which DOES seem high, considering my blitz% is not higher than 10 across the board, so I guess the game maybe somehow takes coverage sacks into account with out actually knowing it?