It's still hard to believe you had better performance solely because you switched the software.
Bad ping is bad ping and pools would probably reject the shares no matter what software is reporting.
yeah I duno too, but claymore with ethereum worked gr8, same ping, I needed 1h just with team viewer to switch software on 5 rigs, and it was not just for 5min but I keep it like that for ~1h on ethereum, and switched back to EQM when my ISP fixed the ping
still I don`t know how would other miners behave as i can not reproduce bad internet myself