When I launch the Vulkan version of the game, even though render scaling is at 100%, it lists the scaled resolution under graphics as 1152p instead of the set 1440p under display.
It also causes my frames to tank every 3 seconds while playing to about 20fps and after another 3 seconds it goes back to normal to start the cycle again, when I run a benchmark however it doesn't show this dip at all and says it's 220fps average with the minimum not going below 200fps. This is fixed when I disable my second monitor in the windows settings, however I'd rather not disable my monitor every time I want to play Siege.
Everything is fine however when I launch the normal version of the game.
I'm running Siege on an RTX 2080 with a AMD Ryzen 2700x and 32GB of RAM, so it's not a weak hardware issue. This also didn't happen previously, it started somewhere recently because I remember playing with Solis when the battlepass exclusive expired and I didn't have this problem back then.