Same issue here, going from 120 fps to under 30fps over longer missions. This weeks archon hunt defense, by round 5 was laggy, but final round was almost unplayable. Had this issue a few times, but only with dante. Dante in entrati, Dante in Duviri, and now Dante in Archon Hunt.
One thing to note here, is that using operator, or aiming in with a scope weapon (snipers, e.g. Rubico), the FPS drop dissapears until transference back into dante!
Other frames are working with no issue in long (+30mins/1hr) missions, but Dante slows frames down after about 15minutes.
