Would taking to much lysine cause erectile dysfunction I can get hard but its difficult to maintain and notice when I do take it I have a higher sperm?

No. Scientifically,there is no basis for what you are describing.Is this difficulty to sustain erection new? Is it always ? There are few methods to help but it would require prescription. If this condition continues,and you can afford it see a urologist who has interest in erectile dysfunction You don't have anything serious..Good Luck.
Quackery. Why are you taking this junk? It won't have any effect on erectile function, but it won't do any good either. You're wasting your money.