Descriptive Problem Summary:

Having many verbs on many objects on one tile makes opening right click menus slow again. This happens whether the verbs are accessible to you or not.
Verbs on your client / mob don't affect the speed.
513.1524's right clicks are noticeable faster so I assume it might be caused by the "Activating a verb via right-clicking on the map could activate the verb for the wrong object, if multiple objects shared the same name." bugfix.

Test case: (adapted from ZeWaka's recent similar test case)
https://mega.nz/file/ 7R9EUaqI#5rgl3cGaZ0bkxFtzaDgh6c1_RxmUfTcCHH2i-XeMJjA

Numbered Steps to Reproduce Problem:
Have a bunch of objects with a bunch of verbs on one tile.
Right click on them.

Expected Results:
Right click menu opening quickly.

Actual Results:
Right click menu having a noticeable delay.

Does the problem occur:
Every time? Or how often?Every time.
In other games?N/A
In other user accounts?Yes.
On other computers?Yes.

When does the problem NOT occur?

Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? (Visit http://www.byond.com/download/build to download old versions for testing.)
513.1524 doesn't suffer from this problem.

Workarounds: