centos 7 image Hetzner?

Hi
I have some problem with centos image from installscript on hetzner dedicated server first its take long time to install not like ubuntu and debian image i try it both and no problem in install or used after install fast and good perfemance but when i used 7.8 or 7.9 image from there template its take long time to install and to boot and after booting long time to login via ssh and to update i check it its not problem with my ssh or hardware because with ubuntu and debian no problem.just ask if anyone had problem like this?may be i willask for kvm and install other iso image will be better?
Thanks for help
PS:i used rescue mode

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Thanks for reply @eva2000
Its dedicted server
Intel Xeon E3-1271V3
32 GB Ram
After testing more time its not problem with centminmod script or server but the kernel when i upgraded kernel to 5.4 or main line the system not stable and slow down and the same problem like i said before but when i leave the kernel without change evrything work great and fast,honesty i dont know why this happen but if anyone have the same thing, better not upgrade kernel.

 

any wy this the

i think the same also maybe hardware proble anyway evrythink work great now this is install-time with the last beta centminmod