Fast travel crash (Fallout 4)

My funny
config I play from a MacBook about 2015
CPU i5-5257U 2.7GHz
Mem 16Gb DDR3 1866
Video Intel Iris 6100 I only
move around the map on foot, when I move quickly, the game crashes, it also crashes when leaving Vault 111 (at the start), and upon entering in Diamond City, I play in windowed mode, at a resolution of 800x500
Anyone come across a similar one?
Did you manage to solve this problem?