[kava]

thank you for your replies.

- yes I also have plugins that have significant impact on gui performance. Flux Analyzer uses a lot of graphic power, but the difference it makes if I use this plugin with 2019 or 2018 is really huge. nearly all "gui-speed" affecting things I do/open really influence 2019 way more. larger sessions are still "ok" with 2018. but totally unusable with 2019.5 or 2019.6

- Yes is use a 4K widescreen and two more HD screens. The color profile change didn't help - and I think the problem got even worse two weeks ago when we connected the 4k Screen (used for edit window). quitting the windowserver didn't help but thank you for the tip.