Assets SLA - General question

 Background 

When my company  stood up R12 in 2010   our  Assets SME was told When we implemented  IFRS , that, we should not have any more than say a count of 100,000 assets in a single book, otherwise if we exceeded that number then performance would not be optimal.

My questions :

Is there a  limitation on Assets Books in terms of the optimal Number of  assets assigned ?

We are considering a change in process where  numerous  assets will be added and retired on an ongoing basis ( estimated to be 4000-5000 transactions per month)

Thanks 

martin