If you apply for the Capital One Venture Card online you should get a decision instantly on your computer screen but if you apply for the Capital One Venture Card through mail it can take a few weeks to get approved and have the card mailed to you.
To get approved for the Capital One Venture Credit Card your credit score should be at least 700 but the higher your credit score the better your chances at getting approved for the credit card.
If your credit score is under 700 or is only 600 then it can hard to get approved for any type of credit cards.