Monster adansonii are native to the jungles of Central and South America, so they grow in the wild under the coverage of trees. Therefore, the plants grow best in indirect sunlight. If it's in a spot with direct light, limit it to just 2 to 3 hours of morning sun.
Before you water a Swiss cheese vine test the soil to see how wet or dry the soil is. If the soil is nearly dry, water it. Don't let the soil dry out entirely.