It seems that this issue only occurs when the command block output game rules are enabled, so the reason why item display entities are more laggy should be because their names are relatively longer than other entities. Mojang should modify the output performance of the command block.
It seems that this issue only occurs when the command block output game rules are enabled, so the reason why item display entities are more laggy should be because their names are relatively longer than other entities. Mojang should modify the output performance of the command block.