Optimize for new parlot features

[sebastienros]

No description provided.

[sebastienros]

All this work and now it's slower

before 

| Method         | Mean       | Error     | StdDev    | Gen0   | Allocated |
|--------------- |-----------:|----------:|----------:|-------:|----------:|
| Parse          |   3.505 us | 0.0256 us | 0.0239 us | 0.1717 |   2.83 KB |
| ParseBig       |  15.461 us | 0.0496 us | 0.0464 us | 0.7019 |  11.66 KB |
| ParseAndRender | 243.217 us | 0.5577 us | 0.4354 us | 5.8594 |  99.21 KB |

after

| Method         | Mean       | Error     | StdDev    | Gen0   | Allocated |
|--------------- |-----------:|----------:|----------:|-------:|----------:|
| Parse          |   3.914 us | 0.0280 us | 0.0262 us | 0.1678 |   2.84 KB |
| ParseBig       |  17.155 us | 0.0414 us | 0.0346 us | 0.7019 |  11.67 KB |
| ParseAndRender | 247.994 us | 0.7497 us | 0.7012 us | 5.8594 |  99.23 KB |

Will try to isolate what regressed in Parlot, or if this because of these changes here.