If FIFA was running with the wrong player settings, it would be a mess. The system you have works, but works 10 times better when I make an exaggerated realistic team in the customizer. I lower the overall speed of all players, and especially the forwards. This results in a discernible difference between the forwards and backs. Backs I tweak their setting going from 90 for fastest backs through to 65 for the centers. Then when I get to the forwards, speed and acceleration is set to between 50 and 25. Although this sounds wrong on paper, the result is a far more dynamic game, with palpable and noticeable variations in the speed of different players, lumbering forwards and fast backs. Interestingly enough, even though the range of speeds is exaggerated, it results in a much cleaner game, less crazy running and better forward and backline play.
I understand that you cannot give players a nerf across all their stats (props rated 20 for speed), but what if you applied positional nerfs (Props rated 60 for speed but runs like a 20 through a % nerf)? So props will always be operating at a reduced speed and acceleration, and so on across all forwards and even to the backs. By creating this contrast in speed through the team, support running is improved immediately as the speedier outside backs catch up to the action much better. This is a simple change that can have a massive impact on the game, and completely change the way it plays. At the moment, it feels like playing with 30 Cheslin Kolbes on the field. Chaotic. With these tweaks it feels like a rugby game, and is far more realistic, feeling less arcadey and Cheslin kolbe-esque, and more like a real team of diverse players and roles. Amazing how much of an impact it makes when the team has speeds ranging from 20-85, its really incredible how much it benefits your system, with the faster outside players running great support lines due to their speed, all without any real intense recoding! I was able to have amazing backline and forward plays.
If you went and applied it so that there was range of speeds across all positions, modifying their base stats to exaggerate this difference, and released it in a patch, people would be impressed with the level of authenticity, fun factor, strategic options, and time on the ball. Just by applying 15 exaggerated varied positional speed nerfs without the player even knowing, would revolutionize the gameplay. It sounds crazy, but try it, and you will be surprised with the level of depth in the game you can almost instantly create. This also allows more time for decision making, control and more options, tactics, probing etc. The funnest part of rugby games is when you have ball in hand - let this period be extended by a second or two by slowing the overall speeds by a bit. I swear on this, and will be releasing footage of my gameplay, which honestly looks like an entire new game. You have this solution for so many problems right here, your game isn’t overly glitchy, its just got 30 Chelsin Kolbe type players, when it should feel like a rugby team. I cannot over emphasize how this method of mine has been tested over many years, and how much better the game can become just through doing this.
Position Speed and acceleration
Flyhalf, Inside Centers 65
Outside center 70
Fullback, scrumhalf 75
Your systems start to work with these tweaks. Please consider it, I will be uploading footage of my gameplay for you to see how good it looks.
Kicking needs to be fun and challenging. far too easy. Conversely, the line outs are brutally hard and somewhat confusing. A little work there will go a long way. Goal kicking should be harder than lineouts, just saying. Scrums are fine.
Rucks are fun, but the turnovers are too sudden, and can really frustrate players. I would make turnovers far more rare, and encourage long passages of play. That is another positive aspect of the rugby champions game, that you can hold the ball for satisfying amounts of time, and can build up with the forwards
I hope my suggestions are taken into consideration, and I wish you all the best. If you wish to receive more feedback, I would be glad to give you some.