The network suffers from additional users.
I think It declares that if the number of users exceeds a specific number, the network will have to deal with some problems.
I have used the adjective "additional" several times. I want to imply the same connotation but, it really bothers me to overuse a word in a piece of writing. I came up with:
The network suffers from increasing numbers of users.
Can I use increasing in this context if I have to avoid using adjectives like extra, excessive, further.
I think increasing would convey the general sense of growth no matter how much this expansion is big. something similar to ever-growing.