Actually, there is no escaping even with suicide. As we see in the film, suicide only restarts the loop for those poor folks. However, the duration of each of the loops might be related to the acceptance of the people in side it.

The Entity decides the length of the loop depending on the story inside – the beginning, middle, and the end. For Michael and Chris, it is one week because that was the duration Michael had planned to keep Chris handcuffed initially. The Camp seems to have 10 years because there seem to be more people and perhaps a more significant dynamics.

There is a popular theory that more defiant the people in the loop are, the shorter their time-loops get. The Camp finds it an honour to be killed by the Monster, and they get a long 10 years. Shitty Carl perhaps started with a longer loop but was reduced to three hours as a punishment for his non-adherence. Michael and Chris could suffer the same fate in time too. Maybe the 1900s guy didn’t have it this bad in the beginning.

Source: Endless Explained

Also, for those who may not know, Resolution (2012) is the first part to this movie. Michael and Chris are characters from Resolution who play a cameo here.