Actually too much Gap in Sexual intercourse or too much sex...both things are problematic... Because too much eager also can cause Premature ejaculation... Still below one minute is definitely abnormal,if you have it.
Next Steps
Ayurvedic medicines gives nice results in such problems as it gives proper strength and stamina with proper erections.... Consult a reputed Ayurvedic Sexologist in your city
Health Tips
Follow Start & Stop method.. U can learn it by searching online... Avoid hot tea, coffee etc.. Take proper sleep... Follow proper diet and lifestyle