The number of bitcoins issued is halved roughly every four years.
In the future this number of releases will be small.
Why not consider a fixed low interest rate mechanism to ensure that Bitcoin is more suitable for current economic activity?
For example, if you hold 1 bitcoin in an address, you will be rewarded 0.02 bitcoin after holding it for 1 year.
Interest is calculated and paid every year or before you will pay to another address.
Having a limited number of bitcoins can ever exist, is itself a deflationary measure. Then we also have halving where the mining reward decreases to half at certain stages. I believe Satoshi has already implemented two very powerful deflationary measures for bitcoin.
Adding interest rate to bitcoin holding can surely help. This will encourage people to hold their bitcoins which can have a decreasing effect of supply which will eventually drive the price up. But it needs to go through consensus mechanism.