Lineweight issues in modelspace v26 compared to v24/v25?

Hi all,

We have been using v24 and v25 for a few years and all working perfectly, we are upgrading some computers to v26 as have seen some increases performance when modelling in a XREF overlay, however we've noticed that our solids when viewed in 2D Wireframe view (our default wireframe visual style) they are MUCH thicker lines than in our previous versions, has anyone else experienced this, is there any fix/setting to change?

I have gone through and tested/changed all LWDISPLAY, LWEIGHT, etc from what I could find online suggestions, nothing has changed. The only thing that worked was changing to the normal Wireframe view but then all our text looks pixelated/janky.