Slow lorises are named from Dutch 'loeris' which means "clown". The 'slow' refers to a defensive strategy: slow movements make them hard to see & they freeze in place when threatened. They do have one trick 'up their sleeve' so to speak: they're venomous mammals, but the poison is in the armpits!
The oily secretions from the axillary gland (armpit) become a venom when mixed with the loris's saliva. The loris then spreads this venom on its fur as a noxious shield against predators. The venom is nearly identical to FELINE ALLERGEN, so the venom likely acts by anaphylaxis (allergic rxn).
An unusual theory ultimately warrants skepticism under further research is conducted
No one has ever seen a fast loris (because they're just too fast).
Some humans seem to be halfway there