In speed review, speed is of the essence but …
When learning or revising (especially where you have a phrase as a question and another phrase as the reply) accuracy is important.
When answering (and given a choice of say 4 or 6 alternatives) I may not be certain I have chosen the right answer, so I like to re-read the answer to help reinforce the learning.
If I get it right I often don’t get long enough to reinforce it in my mind (and no repeat for a long time).
To keep everyone happy, could we have the option (1) as now and (2) to have twice as long a gap before the next question is asked.
This would certainly help me.