Gmail takes often forever to display on Win8 tablet after sleep

How can I debug this? What should I test out to find the reason? I have about 90.000 gmails. I see it often uses very long time doing the syncing flags. What is that and can I turn that off? After reboot it most often works fine, until next sleepmode on my tablet. Tablet: Acer W510 Win8 32 bit. The subject on the gmails are showing up but the content takes forever. Please help.

Send us your logs please: go to menu Tools->Settings->Advanced->Logging and check “IMAP” under the problematic account. Then restart eM Client, try to simulate the issue and send us (with reference to this topic) the logs using the same logging settings window. Thank you.