I nacin:
U address baru kucajte: opera:config
i zatim nadjete performance, namestite podesavanja ovim redom
* Max Connections Server: 16
* Max Connections Total: 64
* Network Buffer Size: 32
* Uncheck Reduce Max Persistent HTTP Connections
posle toga , Tools - Preferences - Advanced - Browsing - Redraw Instantly.
II nacin :
1.Ukucajte about:config u adress bar
2.Ukucajte connections u search bar
3.Promenite vrednost Max Connections Total od 20 u vrednost između 32-65 (ja sam stavio na 40),
i izbacite onu kvačicu kod reduce
4.Max Connections Server ne dirati
5.Save
1.Tools>preferences>Advanced>network
2.kliknite na Server name completion.
3.Skinite kvačice sa Look for local network machine, Try name completion
4.Sad će vam Opera prestati sisati CPU pokušavajući odgonetnuti šta pokušavate upisati dok kucate u adress baru
Preferences>advanced>history i sada smanjite broj zadnjih possćenih stranica sa 500 na 100
Tools>Preferences>Advanced>Browsing>Loading promenite vrednost u redraw instantly
Tools > Preferences>Advanced>History>Check images, stavite da proverava image svakih 24 sata.
Izvor