Impossible to answer as hardware is getting faster, but also networks, storage, firewalls, kernels etc.
We have millions of services - This is quite tiny in our world.
We upgrade to be compliance so for us having old agens it not acceptable.
We dumped the VM path years ago. Only physical servers. Even dumped SSD as they are to slow.
Will 2.1 be better? Have no *€%&€ clue. We just have to find out the hard way.