Hello.... Im not happy to hear that.
I have tried helping you with the plugin you was also in call on screenshare, you left out of no where. And you say the texurepack gives lag but its an small texurepack and no one gets lag from it. So you have really bad pc because its not even support a resourcepack.
And you say "Too many vehicles" we dont say that you need use that resourcepack. You can add and remove your own vehicles of it in the vehicles.yml the resourcepack is not an part of the plugin.
Paper. You probably used paper and they limit armorstand ticks so they don't move smoothly anymore. That was probably the lag problem.
I hope to have informed you about this, please come back to our Discord server and go to Joep#0001 pm and we will talk about it.
https://discord.gg/vehicle
You apparently know better than our Team MTVehicles so why not help us with it? Our code is open source, so why didn't you make it yourself / help if you still have that comment? you can cancel it, but why not help us with it? here you can find the source code of our plugin
https://github.com/GamerJoep/MinetopiaVehicles
Please delete this review because it was not very useful. And because the problems such as texurepack are up to you and that you haven't extensively tested the entire plugin yet.
If you still have some question send me an message on Spigot or DM me on Discord Joep#0001