not possibly. thats not how mega works.
you can download up to 5gb files without any issue, if they are larger than 5gb, you can still download, but you will have to wait a number of hours idle with the window open after the first 5gb.
are you using some kind of device that is designed for telephoning your mother on a sunday night?or are you using a device designed to play "computer" games?
even if its some kinda weird computer, cause is given to you right there - not using the right tool for the job. get a better browser, one that is capable of doing the job you require of it.
sounds like user error to me.