It looks like the truck mod changed the handling lines to.
Can you remove the truck mod and post a picture here please? Also check if your speed is still faster then normal in a linerunner.
There are a lot of mods posted here:
https://forum.convoytrucking.net/index.php/board,72.0.htmlMost of them are tested and ok to use, sometimes when you download mods from the internet it changes the handling of it like top speed and powers.
You are not allowed to use mods in the server that changes handling lines.
If you post a picture that you removed the mod we will unban you, but makes sure you don't install mods that changes handling again.
You can always ask a mod/admin ingame via /a to check your mod if it's laggy or if they see something unusual to it.