If the key objective in moving the start is to get the horses away from the main stands area, they’d have been better lengthening the race by 3 furlongs.
That would also give them much longer to settle and get sorted out before the first as well as encouraging a generally slower pace throughout.
You’re joking I hope?
With 40 horses going hell for leather trying to get a good position for a sharp bend that’s
more
than a 90 degree turn. Doesn’t sound much like "encouraging a slower pace" to me. Some slipping, some going wide and losing a lot of ground… No jockey could afford to give away ground by going the wide route to the first, so you’ll have even more conjestion for the first fence.
This new start could work, cutting down time to get to the first may well mean horses taking the fence at a slower pace. Though it may not be reduced enough for that… And there’s still 40 horses to get a clear run at the fence.
Although let’s remember the main purpose of moving the start is to get it away from the crowd and not to slow the horses down although that may be something that will happen.