you ought to be learning the techs one or two at a time, so you can learn them gradually. If you are being given all 24, or 10 or so at a time, that's a problem. Then, it becomes an exercise in simple memorization, and you can't effectively learn them as well. If you learn them gradually, you will learn them better and have an easy time remembering them. You remember them because you KNOW them, not because you simply memorized them.
I would certainly hope that it takes at least twice as long to progress to Orange Belt as it did Yellow. The curriculum is much larger, and your performance of all the material needs to be on a higher level as well. That takes time. No hurry.
I know you come from a TKD background, and this will affect how you learn your kenpo. Not just comparing how you do things in TKD vs. Kenpo for example, but in how the systems are put together with a specific curriculum.
A friend of mine earned his TKD shodan back in the late 1970s or early 1980s, something like that. When I told him about our curriculum in Tracy kenpo, which is typically even larger than the curriculum for later kenpo lineages, he was blown away. We have ten techs for yellow belt, and then 30 each all the way thru fourth black, and 41 for fifth black, plus all kinds of kata. He said in the TKD that he learned, they had about 5 for each belt, plus one or two forms. His entire formal curriculum for shodan had maybe a dozen kata and 30 or 40 self defense techniques. We have 250 self defense techniques, plus many of them have variations, and a couple dozen or so kata to shodan. It's just a very different way to structure a system. Coming from a TKD background, it may seem overwhelming.
It takes constant work and training, to stay on top if it all and to improve and learn more. Just keep training.