An increase from 10 to 20 will be proposed as part of the next software upgrade proposal, which is due very soon to tackle the ongoing issues.
This was also touched on in the signalling proposal thread to raise the maximum gas and lower max bytes.
While a smaller increase than what @faddat is proposing, this will let us see the impact of increasing the bytes and choose whether to increase it further by parameter change proposal while having a much smaller impact on transaction fees.
We are likely going to propose a further gas increase after the v22 upgrade is in place, so I think we can tackle both issues at the same time with further increases if required.