Those aren't really a good quality pellet in my opinion. They're made with cheaper ingredients for bulk or mass feeding. I would suggest going with a reliable pet brand like oxbow, sherwood, science select, etc, as they have better quality control and generally are a higher fiber lower carb pellet, which is preferable and better for rabbits digestive function. The pet brands are more expensive, but the better quality and reliable safety factor is worth it to me.
To me pellets aren't a necessity but just a supplement, to ensure a rabbit is getting the needed nutrients, like a multivitamin. As long as your rabbit is maintaining a healthy weight and isn't getting too lean, I would keep with the diet you're feeding. If you feel your rabbit is getting too lean or losing weight, increase pellet amounts. Though I wouldn't increase the ones you currently have, but get a good brand, alfalfa based for young growing rabbits since your rabbit is still a juvenile, and start transitioning those in for the increased amount of pellets. With changes of pellet brands/types, it's usually best to transition from the old pellet to the new, gradually over a couple weeks to minimize gut upset. Except in cases where the current pellets are causing serious health issues.
There are general feeding recommendations for rabbits, but every rabbit's nutritional needs are going to vary based on individual metabolism, growth rate, and specific health needs. So what might be fine for one rabbit, won't work well for another. I base my feeding on each rabbits output, the poop and the urine, any specific health needs, and if they are maintaining a good weight on their current diet. If they are producing excess cecals, likely they need less protein in their diet. If they are producing small dark fecal poop, they likely need less pellets and more fiber from hay. If they have urine that is full of calcium sediment, they likely need less calcium in the diet. If they aren't maintaining a healthy weight and there is no health cause for this, they likely need more protein. If they're overweight, less protein and more fiber.
https://rabbitwelfare.co.uk/rabbit-care-advice/rabbit-diet/is-your-rabbit-too-fat/
So it's just getting to understand the signs that indicate a healthy rabbit or one that isn't, and if the problem is diet related, to know how the diet needs to be adjusted accordingly to correct the issue.