Performance OXID 4.5

I noticed that with OXID 4.5 the response time moving from a 4.4.8 is increased.

Anybody else have noticed the same problem?
The server is the same like for 4.4.8.
No other modules are at the moment installed.

Do anyone have a tip?

bye

And clicking in admin on ‘Artikel Verwalten’ -> ‘Artikel’ it returns this error:

Fatal error: Allowed memory size of 50000000 bytes exhausted (tried to allocate 32 bytes) in /usr/www/users/dvditali/oxid45/core/oxbase.php on line 325

Thx for your help

I have noticed also that time moving has increased…
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