item nbt editing strangeness

[Creeperologist]

right now I'm working on a mod where some of the items store a type of energy, while active they drain energy over time, which works perfectly, but I'm seeing a bit of graphics issues

 

each time the nbt data of an item in hand updates, it acts as though you are re-equipping that item, lowering down a bit then rising back up, which when it is draining energy by the second, it looks terrible

 

if anyone could point me in the right direction as to how to prevent it from happening, it would help a lot

[Creeperologist]

right now I'm working on a mod where some of the items store a type of energy, while active they drain energy over time, which works perfectly, but I'm seeing a bit of graphics issues

 

each time the nbt data of an item in hand updates, it acts as though you are re-equipping that item, lowering down a bit then rising back up, which when it is draining energy by the second, it looks terrible

 

if anyone could point me in the right direction as to how to prevent it from happening, it would help a lot