TF has outdated cheat-protection which can easily be bypassed. Instead, these protections have an adverse effect on some (not cheating) players where they are kicked for various reasons. All of these should be removed, except for the message "XXX is going too fast, (speed, expected speed)".
Logged In: YES
user_id=1851940
Originator: NO
Found speed cheat checking function at Line 2557 in tfort.pqc