Full texture resolution is required for standard gameplay experince but FPS is affected, not bad but not great.

[dis0nored]

In order to be able to read the the text or images on the locomotive or objects the only setting that would work here is full texture resolution. If you happen to choose options such as 1/4 or 1/2, etc. then everything is very blurry and un-readable. The FPS does increase. With FTR enabled, the game's visuals are brought to a standard but not overly fancy graphics, but everything is noted, every object can clearly be seen to be unique which is good. in Train Sim world FTR does not affect FPS this badly. Currently with FTR there a bit of jerking movement in the camera but since the latest patch that was better. Is it simply optimisation issue or something else? What can you think of.