question

That limit (50 per 5 minutes) is the limit on the number of times the same profile can be updated in the time period. Put another way, the title is attempting to update a single entity in the game with higher frequency than is allowed. This isn't a limit that can be increased, outside an Enterprise model where you have a complete instance of PlayFab running exclusively for your titles. It's there to protect the performance of the service overall.

I should also point out that the behavior described is going to generate high costs (presumably the API calls in question are hitting the Profile Write meter: https://docs.microsoft.com/en-us/gaming/playfab/features/pricing/meters/profile-writes), which we would prefer to help you avoid.

We have a best practices guide here (https://docs.microsoft.com/en-us/gaming/playfab/features/pricing/consumption-best-practices) that has advice on ways to cut back on the frequency of updates. But if you have a specific gameplay experience and want to get advice on possible approaches, feel free to describe what the player experience is like for your title, and we can give you some suggestions.