sagemath starting extremely slow under windows 10

[Michael Schmitz]

Hi,

on my new laptop sagemath needs more than a minute (sometimes 3-4 minutes) until I get the sage:-prompt. When entering notebook() it takes again more than a minute (and sometimes longer) until the notebook appears. The first task (even things like 3+4) needs also an unuusal long time. After that sage is working properly. Using the Jupyter Notebook I have similar problems. It is starting extremely slow and the first task is done very slowly.

I am using

SageMath version 8.9, Release Date: 2019-09-29

I am working on an Lenovo ThinkPad X1 Carbon 2019 with Windows 10 Professional

My CPU is Intel Core i7-8565U CPU @ 1.80 GHz 1.99 GHz

I have already tried to change to an older version of sagemath but it showed the same behaviour.

I am happy about any suggestions! Thanks

Michael