Is dell dw1820a working in catalina or big sur? Its a broadcom based chipset bcm4350

Is dell dw1820a working in catalina or big sur? Its a broadcom based chipset. Bcm4350

Wifi icon shows up however it slows the laptop down to the point of almost crashing it

Any ideas.

Dell latitude e7250 I5-5300u 8gb ram 256gb msata ssd

Also noticing the wireless light on the laptop is blinking after replacing the wifi card from original Intel 7265ac card originally from the laptop

Any help appreciated.