Increase performance for tree from tree manager

Hello,

How to increase performance for one tree(project tree) from tree manager.

Here is the problem:

we have one tree(project tree) with 10 thousand nodes(projects). nodes(projects) will keep on growing for this tree.

whenever a node(project) is added to this tree. its taking alot of processing time.

so, we want to cut down this processing time.

possible solution:

Moving old node(project) to new tree.

do anyone have delivered scripts to move nodes from one tree to other tree?

FYI, we all option in tree utility but didnt increase performance.