Liberal MPs are hosing down the prospects of a leadership change, despite Opposition Leader Sussan Ley's personal popularity plunging after weeks of party infighting.

Just 33 per cent of voters surveyed in the latest Resolve poll rated Ms Ley's performance as good or very good, down from 41 per cent in September.

The poll indicated 38 per cent of voters said Ms Ley's performance was poor or very poor - six points higher than the last reading.

Despite the poor figures, Liberal figures were quick to say a leadership spill was not imminent.

Asked about the numbers, former Liberal prime minister Tony Abbott said Ms Ley had his "support and encouragement," but he didn't want to give a running commentary on the opposition leader's performance.

Mr Abbott said a good opposition should be a "s

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