Why are Muslims tormented in the world and God does not save them, even though they are His worshippers?

Muslims are afflicted with trials and the dominance of enemies for a profound wisdom from Allah, which is to test people to reveal their true nature, so that those who perish, perish with clear evidence, and those who live, live with clear evidence.

This world is not the abode of recompense, and absolute justice will only be in the Hereafter. The oppressed will find their full rights on the Day of Judgment, and the oppressor awaits just punishment there.