Default Stock Google Email/Exchange delayed sync

Anyone using the stock Google Email/Exchange (I'm on 6.3) and noticing delayed synching of push email? On my Moto X with the same Email/Exchange combo, I get emails almost immediately (and before my desktop). On my G3, they seem to be delayed - can be a few minutes or more.

I tried clearing the data, removing the account and re-adding it, but seems to be the same issue.
Current Devices:

Moto X XT1053 | 32GB | Black/Black Woven | Epsilon 2.0 (KitKat 4.4.4 ROM) | TWRP 2.7.1.1
Pre-Order Sony xperia z3 compact | 16GB + 64GB Micro SD | Black | KitKat 4.4.4 |
Fido Galaxy S4 i337m | 16GB + 64GB Micro SD | Sapphire | Dandroid GPe KitKat 4.4.4 ROM | TWRP 2.6.0.0
Samsung Galaxy Camera 2
MacBook Pro Retina 13" 2013 i7 2.8Ghz | 1TB SSD | 16GB RAM | Thunderbolt display
iPad Mini Retina | 32GB | Wi-Fi