Problem latency network

[Jerem]

Hi,

I install 2 5406 with VRRP protocol ,30 2510-24 Poe, 15 2510-24G and 10 2510-48G. I've got te MSTP protocole on my network, but, users complain that the network is slow. I have not seen this dysfunction. The ping is >1ms. Any switch are connected with 2 other switchs, and have many interconnecte link.

I think, the problem can made by the STP.

When you deploye with MSTP, what command you use ?

I use "spanning-tree" and use for example "spanning-tree interface 24 priority 4"

Have you any idea ?

Thanks

I'm French, sorry for the traduction ;)