Hey, i recently had this problem, this is the way i fixed it...
Navigate to your Gta V main game directory,
Click on the lspdfr folder
Click on the "lspdfr" folder (this is the configuration setting folder) Dont get this confused for the "LSPDFR configurator"
Inside the notepad change "Main.PreloadAllModels = true" to Main.PreloadAllModels = false
This should sort out all your issues, let me know if it helped 🙂