3d item drops negatively affect the framerate

Compared to old betas,I used to play this game smoothly and the framerate drops only when I drop so many items like 60 or more items but now when I only drop 4 items or more the game lags a lot like if my device is not having a gpu and they turn it into unplayable game for example If framerate was 60 and now if you dropped 3 or 4 items the game starts lagging like If it has many shaders and addons on it and also I don't use any of them.