LAG when using large MCU schematic symbol

Has anyone experienced LAG when working with a large microcontroler schematic symbols? I have a LQFP 144 pin and it is beating KiCAD quite badly… Does anyone have any idea on how to improve performance?

I’m using a recent nightly build of eeschema on Windows 7. I can pick up three 50-pin parts and move them around with very little lag. All that gets redrawn are the part rectangles and the pins (no pin names or numbers). That’s not much of a load to redraw.

What are your system spec.?

No lag here, e.g. for a LQFP100 STM32 MCU. Nightly May12th, Windows 10, i5-2500K@4GHz, Radeon R7 260.