If You will guess from what game this pickup is based off, I will give a pizza Little hint: look at the license plate.
If multiple vehicles are spawned remove some of them. If you only have a single vehicle spawned, try the 'Performance' tips seen in 'Help' (F1). If all of those are fine, try closing unnecessary programs in the background of your pc. Also check if windows is downloading a software update, you can do that in the update settings, just search for Update in the windows search function. As a last resort lower your games graphical settings. Ot: the first picture I ever posted on here