What is the maximum number of members we can have in an EPBCS application

We have an EPBCS application. Our Project dimension now have more than 113k members. What is the maximum numbers of members we can have in a dimension. What will be the threshold when we start hitting performance issues.

Current Setup:

Dimension → PLN → REP

Accounts --> 005 --> 1438
Currency --> 005 --> 005
Entity --> 600 --> 720
Expenditure --> 16 --> 1300
Function --> 922 --> 922
Location --> 34 --> 8k
Period --> 46 --> 42
Scenario --> 40 --> 40
Source --> 12 --> 12
Project --> 113k --> 112k
Version --> 4 --> 4
Years --> 12 --> 12