I know it’s way too late for you to change ur scrum mechanics but here’s a suggestion that I reckon fits the mould of rugby more.
Should have a timing button for initial hit, if you’re outside of it by too much you miss the hit, collapse & get penalised. If you hit it within time but worse than ur opponent you lose the hit and have a mud scrum. If you win the hit then you should win the ball. Just keep it as simple as that. Make scrubs quick in the game because they take far too long in real life lol.