Better to invest as per DCA once a month. And if you have a lot of money then definitely invest twice a month according to DCA.
But you must be talking on the other side, it is better not to discuss such things here.
Invest according to DCA for present time then you will be successful in holding for long time. According to the DCA, buying in Bitcoin certainly encourages you to buy more later. Successful whaling stocks can certainly be harvested through DCA using such methods.
In this case I think it depends on how you are able to do consistency in doing DCA regardless of a week, 2 weeks or once a month I think it doesn't matter and it's not how much money you have but how your strategy is in managing so that the money you budget for DCA does not interfere with other needs and you are able to do it consistently.
Buying more in what context are you saying? When you say buying more in one moment it can disrupt the consistency of your DCA which in turn is a setback for the DCA that you have been doing for some time because of the aggressiveness made in one moment.