Lagging Problems in Trainz 2019

Remember my one video from a few years back about some lagging problems that I had in Trainz: A New Era?
Link in case you haven't seen it: • Lagging in Trainz A Ne...
Well... Just tonight, I discovered I have the same issues in Trainz 2019. From what I've read in the comments about the T:ANE video, it's because of the ACSlib. But this time, things are more complicated in 2019. I theorize that just like in T:ANE, it has to be the Built-in version that must be the active one; the one that must be in use in order for the game to run smoothly. But in 2019, there's a version marked "Packaged" as its status that has a higher kuid number than the Built-in version, rendering the Built-in obsolete, as marked in the 2019 Content Manager. I tried deleting the "Packaged" version to get the Built-in version back, but it won't let me. I can't delete the "Packaged" version. To tell you the truth, I don't even remember how I got the "Packaged" version in the first place. HOW DO I FIX THIS!?!?!?
Route from Sodor Island 3D (shut down).
Gordon model from WildNorWester3D: wildnorwester....
S2 Express Coaches from Sodor Workshops: www.sodorworks...
Filmed in Trainz Railroad Simulator 2019
Recorded using NVIDIA
Edited in adobe Premiere Elements 14
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I own nothing.
All Thomas & Friends rights belong to HIT Entertainment/Mattel
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This video is for a general audience of all ages, and is for entertainment only.

[@gameoholic1994]

07/21/2024 UPDATE: I installed one or two models that I think had an even NEWER version of the ACSlib (version #20, I believe), and now they're working fine again. No more lagging.

[@DoncasterResonance]

Sodor Workshop models lag the game when they derail and couple and even decouple

[@Jetthehawk1994]

Well it looks like you need to update the TTTE Script.

[@gameoholic1994]

I don't think it's the Thomas content. I think it's the ACSlib asset from the game itself.

[@mitvjosh420]

Try use another coaches