Earlier quoted context omitted.
90 minutes is a very big ask if you want to be consistent. Maybe you're simply trying to bite off more than you can chew? I think consistency is king, so whatever you have to do to stay consistent will pay dividends, even if that means shaving your working set down to just 10 minutes a day.
The thing with Anki is that you cant control how much workload you have per day. Anki algorithm decides that. Say, you start by doing it little bit every day and you are fine for first three weeks. But then, Anki starts assigning you more and more repetition and that is it. If you do less one day, Anki gives you those cards the next day on top of the normal workload of that day. There is no way out. Worst, the less y…
If you're finding that you reliably do not recall some card Anki will eventually mark it as a leech. Those cards get suspended automatically after some number of lapses. That will reduce your workload because suspended cards are't part of your workload.