Hi my friend and thank you! :D
Sadly BSRGAN architecture is really slow, but maibe you can try RealScaler, it has 2 super fast AIs (~4 times faster than BSRGAN, but quality is lower)
I am also trying to integrate 3 new artificial intelligences into QualityScaler, which have slightly lower quality than BSRGAN but being faster.
Also still, in the next updates there will be several improvements when it comes to speed, stay tuned :)