Browser Testing with Genymotion Exhausting?

Hi,

i’m testing mobile web using appium (latest) on android, both on Chrome and Native Browser.
all that on a Genymotion emulator (Nexus 5, Android 5.1).
i’m experiencing constant behavior of the genymotion emulator (or the android inside) hanging after ~15 chrome sessions or ~30 native browser sessions.

anyone experienced such behavior or similar ?
anyone running against genymotion emulator (mobile web) ? how many sessions until it dies ?

thanks
Roy.