Does incremental reading take too much time?

Incremental reading should not feel like it takes "too much time" if material that is relevant and important to you takes up a proper portion of your learning process. Do not create cloze deletions immediately! Reap the benefits of the spacing effect by memorizing in need!

From supermemo.com:

• The best moment for using Remember cloze is when you notice that the material becomes volatile. Do not dismember the entire passage (unless it is very important). Pick the most important keyword and create just a single cloze deletion. When the next review of the passage comes, you will be able to determine which other keywords must be used with cloze deletion to prevent forgetting key information
• You do not need to wait until a paragraph or a sentence become hard to recall in passive review. For your most important material, you can create cloze items immediately after finding a piece of information that you need to remember well
• In each review, do only as much work on the learning material as is necessary! Extracting and editing in intervals adds additional benefit to learning and is more time-efficient. Each time you rethink structure and formulation, you hone the representation and connectivity of a given piece of knowledge in your memory. In addition, your priorities change as you proceed with learning. At times, you will over-invest your time in a piece of knowledge that quickly becomes irrelevant or outdated.
• once the time between reviews increases beyond 200-300 days, reading and re-reading (passive review) will often result in insufficient recall of the material