I play this etude for more than 10 years and I find it easy,so I can recommend you how to work on it. The question here -as in all arpeggios stuff- the change of the fingers 5 to 1 in the same key. You have to ensure that you're not jumping or elevating the wrist in that moment.By first, you can repeat MANY times the moment of the change -a much as you need to feel warm up and confortable- i.e. on the r.h. 1st measure 2-5-1-2, back and forwards, avoiding excesive shaking of the hand and only articulating with the fingers fast and lightly.After that you have to practice the arpeggio dividing it in sections which will turn longer.The idea is learning to feel how many impulse do you need to do the whole passage. There are 2 more important moments: when the arpeggio comes back down, in which case you have to turn the arm direction, and the moment when you finish one arpeggio and start the new one. I'll explain this with the first 2 measures, r.h. -obviously this has to be done in the entire etude, separate hands-.
1. You play g-es-es-g-es several times with fingering 2-5-1-2-5, up and down until you can do this freely. NO JUMPING WHEN YOU CHANGE 5-1.
2. Play fast the half of it: es-g-es-es-g-es-es-g-es.
3. Practice the turn bacK: form g to g -the middle of the measure-
4.Practice the change of harmony-last beat of 1st measure-1st beat of the 2nd-: g-es-es-g/d-as-d-d-as
4. Play the whole two measures together.
Sounds hard, but it isn't, it's certainly a lot of job but if you do it, it will be OK soon.
Hope it helps and it was a minimun UNDERSTANDABLE, it's hard to put in words such a mechanical details. Let me know if it worked.Bye, and never be ashamed of answering, my dear, that's the best way to learn.
