Disproportionate fish bucket FPS drop

[aRPeaR]

I was fishing automated and had a fishing bucket with 3707 hydrocoin worth of fish in it.
I was afraid for FPS drop when I would pick up the fish bucket, but I still had 50 FPS when I was walking with it.
After that I put the fish bucket in my cart and started walking with the cart, FPS dropped to 30 FPS.
I put the the fish bucket and my cart in my hydro truck and started driving to the grocer, FPS dropped to 10 FPS.
When I had sold the fish, my FPS was again at 50.

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We heard you like fish and buckets so we put a fish in your fish bucket full of fish and stuffed that in your truck.

[Alucard †]

I bet it's not as bad as putting 100+ conveyors on the cart then put that cart on the Hydrotruck.

I almost gave up halfway driving that FPS annihilating nightmare back to base.