Assuming you mean 'big' there, I don't think so. Let's say that the Guangxu Emperor is a bit more weak willed growing up. He ascends the throne with more of a feeling of reliance on Cixi, she remains 'part' of the government in an informal way (Scandalous, but no more so that being the power behind the curtain OTL) and isn't put in a position where she's left with nothing to do but try and push her pet project of rebuilding the Summer Palace, so the embezzlement from the naval funds is reduced and the government's a bit more stable. This probably isn't enough to completely avoid defeat in the First Sino-Japanese War, but it might be sufficient to make the peace less punitive- much lower and more manageable indemnities for example. Reforms are begun, but at a slower pace and are more gradual, but the end result is that without the gap and the Boxer Rebellion (because without being hit so hard in the Treaty of Shiminosheki China's able to rebuff more European advances and the Germans aren't able to stick missionaries and troops into Shangdong avoiding the initial spark and leaving the rest of the outposts either comfortably far away in the South, or close enough to be directly managed from the capital in Tianjin) the situation of 1906 is reached in 1902 or 3, and the OTL preparations for a constitutional Parliament are begun then.
We've temporarily avoided some major court arguments between the Emperor and Dowager Empress, but those are likely to blow up sooner or later. The advantage of pushing it to about a decade later is that the Guangxu Emperor is probably in better health, ditto Cixi without all the stress, so lets presume that they still fall out, only now it remains in the earlier stages of the conflict- with Cixi out of court in perhaps 1903 or 4. Her health would probably decline in the middle-to late part of the decade which might well prompt a reconciliation but the end result is that the Imperial Family makes it to 1912 or 3 to oversee the inauguration of the new parliament in a manner that can now act to defuse reformist tensions through an extended transition.
This is still requiring a lot to go right, and could still go horrendously wrong, but I don't think size is necessarily an issue.