Dear frankiedj,
my sincere apologies for the delay in my reply! At the moment the website http://www.web-design-rosenheim.de/ displays a “coming soon” page, which prevents me from troubleshooting the loading speed issue. Could you please send WordPress login and password from the website to support[at]satoristudio.net (no disclosure guaranteed) and I will take a closer look at what might be preventing the website from loading faster. Thank you for your patience!
Sincerely,
Andrii / Satori Studio