AHC: Battle of Karansebes results in early peace

Let's just say that the battle of Karansebes did actually take place and it was widely recorded by both the Ottomans and the Austrians. Could this disaster result in an earlier Treaty of Sistova?

If the Austrians surrendered earlier, would Russia still be able to capture Belgrade (instead of Austria)?

As a bonus: if the battle of Karansebes was widespread across and Austria became the laughing stock of Europe, would their performance during the Napoleonic Wars be worse than OTL?
 
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