For switch to switch traffic, you may see minimal improvement, but it's a wise investment for the future. If you have 1G copper uplinks, an upgrade could be 1G fiber uplinks (free up one copper port). If you have 1G fiber uplinks, consider 10G fiber uplinks. Cost/available funds/other projects would help determine how high on priority you put this.
Esteban J Nunez
School and Church
K-12 Education