Can anyone advise is it good for 5700xt or can further improve more hashrate, the power draw is around 133W.
ZelHash algorithm is a Flux coin ?
https://www.hashrate.no/gpus/5700xt/FLUXCalculators don't always give correct hash rate values because miners are constantly optimised, but I think you are close to the upper limit of hash rate. Sometimes it's not a good idea to mine at maximum power consumption.
If the calculator doesn't lie, the most profitable algorithm for this video card right now is kawpow.
But if Nicehash run the benchmark , the highest profit is ZELhash, is it possible to advise the kawpow for 5700xt setting ?