There is no point in launching a new DLC with a specific region if the location has no characterization with the real place. The cool thing is to go from town to town and notice differences with the real place.
To invest money in something I see on other maps is to throw money in the trash. And to complete the game it loses quality and becomes tiring. Euto Turck Simulator 2 at the beginning was like that, the objects were repeated a few years ago that started this work of characterizing cities and countries both in new DLC and updating old maps.
TML has to be careful with this, invest time in creating something like the neighboring country and lose the countries' identity, this is something serious.
The question of performance is to know how to develop maps without impairing performance. In this case the files will be replaced by others and keep the data rate proportional to the standard files of the game regions that the performance is better.
Paris is a big city, so performance is less, more other cities in France are smaller and the impact on performance is better.
TML needs to work better with Unreal, the water quality needs to improve a lot. The lighting went so crazy that I don't know what to say, I WAS ON THE RIGHT WAY (in the past) but in the last few updates it got worse to the point of becoming discouraging to play.
Some things I liked, the traffic lights were more visible from a distance and the brake lights of the cars. Night lighting needs to be revised, several places need light poles and the quality of light needs to be studied.
I thank the team that improved the lighting of some bus stops that I drew attention to.
I know that part of the problem comes from the Unreal graphics engine in the latest updates. But TML has to develop ways to alleviate the problem until they are corrected by Epic Games. The TML team is hardworking so I continue with my support, but I can't help expressing my opinion. 
