Fix LagCompensator and other minor improvements to it

[jandrokt]

Description

One of the changes in the LagCompensator made it not check for the victim's location respective to the attacker's ping, and instead made it check the victim's location based on the victim's ping, so that was pretty bad. I've also done some improvements and minor changes based on what @HeathLoganCampbell suggested.

How has this been tested?

I've tested the changes on a testing server I have.

Checklist:

• [x] I have reviewed my code thoroughly.
• [x] I have tested my code.
• [x] My changes generate no new warnings

[Sculas]

Thanks a lot, @notdap for this PR! :)