I'm sorry for my draft description... I really wasn't expecting a response so fast... 5*
My English is not the best but I will try hard...
I use the WorkingHours app both from my android device and from my iMac MacOS version 11.6.1 (I'm very sorry it was a big mistake in my first description)...
Lately, I use the app more often on my iMac.
Both apps are PRO version, and on iMac is version 2.7.4.
A few weeks ago I update my iMac to BigSur 11.6.1.
After that update, the app is very slow. Even when I do simple things like open a tab (yesterdays tab for example),
or when I start or end a task. It is not only one thing, but almost everything runs 3-4 times slower than before.
Also, the app is not running so slow, always...
I hope I explained the problem well enough.
Thanks for your help!!!