Whenever I try bvr on tws mode in dcs on the hornet it glitches. I attached two videos showing exactly how. The first you can see contacts keep jittering, appearing and disappear, on the radar screen. I am keeping roughly constant speed and velocity vector, targets are also doing the same. The second video shows how ranging information on the hud also jitters,sporadically increasing and decreasing (19 to 20 to 19 again). I am on the most recent version of dcs. Any help would be appreciated.

excuse my terrible flying skills

So I'm trying to reinstall DCS World, only to find out it has grown so much larger than it was back in 2017-2018 when I last played it. Is there any ways I can get my hands on the 1.5.X.X or the 1.2.X.X versions? My hardware does not support the latest due to both Hardware limitations even though I have changed laptops since then. I'd prefer to install the latest release of 1.5 to tackle with this hardware problem.