With 2Fa, every time I log in, I need to spend 1 minutes, lol. Time is money and precious, that is why i give your site up. Inactivity session is too short. I used to log in your site 5-10 times per day. Feel annoying too.
You believe that security is more important than the time? Some people don't use 2fa system because it takes time to login and extra work.But i think no need to give hackers chance to steal money from your account.You should always use 2fa to secure your account.
IMO, If you don't want to spend time to secure your account, You shouldn't use 2fa and any site you use 2fa it will take time to login.If you don't use 2fa, you're just putting your money on risk.