Help to Buy equity loan — is it worth paying off early?

We used Help to Buy in 2021 on a £250k new build. The 5-year interest-free period ends next year and we'll start paying 1.75% on the equity loan, increasing by RPI + 1% each year.

Our house is now worth about £270k. The equity loan is 20% so roughly £54k to pay off. We have about £30k in savings.

Should we remortgage to pay it off, use savings for a partial repayment, or just accept the interest payments for now? Anyone been through this?