BEST PERFORMANCE!!!!!!!!!!!!!!!!!!!!!!

This mod is big in size and a lot of quality.  If you experience any lag or crashes please follow these steps:

STEP 1:

Now MAKE SURE YOUR GAME IS CLOSED BEFORE OPENING THIS FILE AND CLOSED BEFORE SAVING THIS FILE, you need to go to your documents folder then 
American truck simulator in there you will see config.cfg or maybe just config(if on windows 11). Open this in notepad. Search for "uset r_buffer_page_size" 
which is on line 41 of the config document. there you will see there is a value of 10. Please change the 10 to 30. Then save and exit.

STEP 2:
LAUNCH SETTINGS:

Launch settings can be added by going to steam, right-clicking on American Truck Simulator, you will see properties. Then you should see a blank text input box, 
this is where the launch settings go. There is different variations of launch settings so let's go with these. 
(PLEASE SELECT THE ONE FOR YOUR RAM AND COPY AND PASTE INTO THE EMPTY TEXT BOX, SEE PHOTO FOR EXAMPLE)

Step 1
8GB RAM:
-mm_pool_size 4096 -mm_max_resource_size 100 -mm_max_tmp_buffers_size 1000 -nointro -unlimitedlog
16GB RAM:
-mm_pool_size 8192 -mm_max_resource_size 100 -mm_max_tmp_buffers_size 1000 -nointro -unlimitedlog
32GB RAM:
-mm_pool_size 16384 -mm_max_resource_size 100 -mm_max_tmp_buffers_size 1000 -nointro -unlimitedlog
64GB RAM:
-mm_pool_size 32768 -mm_max_resource_size 100 -mm_max_tmp_buffers_size 1000 -nointro -unlimitedlog