That's not true. I've met decent men online who weren't looking for a quick...
Heck I've met my husband on online dating site and he is great. Using dating sites doesn't make you a quick...at all

You asked what to change in your profile. I personally suggested to shorten it, take details out and eliminate cliches. I thought you asked what to change?

Please don't give up. Just give basic descriptions in a natural manner. Like you'd be introducing yourself in person. Also Maybe try paid site?