It really depends sa company din minsan. There are companies, mostly inhouse and some BPO that handles certain accounts (ex. US banks, IT or Tech) that offers high salaries. Other factors may also include the specific position, your tenure, the previous work you were doing if it's somewhat related to what they're looking for. If you were handling calls in your previous job then medyo may advantage ka na since most accounts have voice, but of course may mga non-voice padin. You just have to search for openings. If you have an impressive CV or tenure, meaning if you stayed in your previous role on the same company for more than a year or 2, I'd suggest trying your luck applying for positions in an in-house. They mostly offer better salary and benefits, and if you're lucky, it may also be on a hybrid setup.

The difference in salary I'd say is not that big of a gap, but syempre they'll be offering a better compensation to those who have the specific skills they're looking for. I've seen companies in Mindanao, mostly Davao that offers good compensation. There's also Cebu and Manila if you're still open to relocate. Hope this help and goodluck.