Superman has both a green and a blue power ring, he's wearing Wonder Woman's bracers, and he's sundipped for 1 hour.
Blue power rings are fueled by hope; they give their users the most power, but they must be near an active Green power ring to tap into their full potential. While within the proximity of a Green Lantern's ring, a blue ring can heal wounds, and recharge a green power ring to twice its maximum power level.
Superman is not holding back in any fight. He's using all the powers at his disposal to their full potential. He gets to fully heal between each fight.
1. War Hulk (not World War Hulk)
2. Sodam Yat Ion
3. Thanos
4. Thor Corps (Thor, Thunderstrike (Eric Masterson), BRB)
Considering Superman has very minimal training with the Green Lantern power ring and no training with the Blue Lantern ring, the interference between both would be a hindrance. He also doesn't have the kind of experience needed to use the bracers effectively like Diana, so they'll help, but not a whole lot. Superman is basically just relying on the sundip here unless the OP clarifies on the level of training experience Kal has with all his items.
He doesn't really need any training with the blue ring, I'm sure it's only there to keep the green one constantly on power.
__________________
I am in your algorithm learning all your mannerisms
I'm already level with God
A million words a second and I know your imperfections, baby
I'm the only future you've got
Speak in diatonics, motivation diabolic
I'm like a religion, better locked in a box
Picture perfect image, more powerful every minute, baby
I am everything that you're not
The interference from the Blue Ring in such close proximately was enough to make Hal Jordan unable to use his green ring effectively. It was at 200% power, sure, but Hal wasn't "amped" as people seem to think he was.
I am in your algorithm learning all your mannerisms
I'm already level with God
A million words a second and I know your imperfections, baby
I'm the only future you've got
Speak in diatonics, motivation diabolic
I'm like a religion, better locked in a box
Picture perfect image, more powerful every minute, baby
I am everything that you're not
Even with full knowledge of both rings, two of them on the same person is going to be detrimental to him as shown by the comics. It was to Hal and there's no reason why it shouldn't be to Superman outside of "it's Superman" or if we're going to have the interference effect not work on him. And iirc, wasn't Superman barely able to handle a brief sundip in OWAW?