I notices that `set lines` takes 19.29ms for 68 calls while my scene initializai…on, so I add some checks to avoid process heavy operations like `trim` and `split` on the string. As a result, in my case this function take 9.45ms for same 68 calls. And it still works as before, of course, but faster :)
P.S. Results of my measurements:
```
default:
{count: 68, avg: 0.342647, max: 1.500000, allTime: 23.299999}
{count: 68, avg: 0.267647, max: 1.300000, allTime: 18.199999}
{count: 68, avg: 0.282352, max: 1.299999, allTime: 19.200000}
{count: 68, avg: 0.294117, max: 1.200000, allTime: 19.999999}
{count: 68, avg: 0.330882, max: 1.700000, allTime: 22.500000}
{count: 68, avg: 0.326470, max: 4.500000, allTime: 22.199999}
{count: 68, avg: 0.276470, max: 1.100000, allTime: 18.799998}
{count: 68, avg: 0.255882, max: 0.799999, allTime: 17.400000}
{count: 68, avg: 0.263235, max: 1.200000, allTime: 17.900000}
{count: 68, avg: 0.260294, max: 0.899999, allTime: 17.699999}
{count: 68, avg: 0.269117, max: 1.000000, allTime: 18.299999}
{count: 68, avg: 0.280882, max: 1.099999, allTime: 19.099999}
{count: 68, avg: 0.260294, max: 0.900000, allTime: 17.700000}
{count: 68, avg: 0.263235, max: 0.900000, allTime: 17.899999}
avg allTime: 19.29ms
-------------------------------------------------------------
after optimization:
{count: 68, avg: 0.195588, max: 3.000000, allTime: 13.299999}
{count: 68, avg: 0.138235, max: 1.000000, allTime: 9.399999}
{count: 68, avg: 0.180882, max: 2.000000, allTime: 12.300000}
{count: 68, avg: 0.155882, max: 1.400000, allTime: 10.600000}
{count: 68, avg: 0.151470, max: 0.900000, allTime: 10.299999}
{count: 68, avg: 0.145588, max: 1.599999, allTime: 9.899999}
{count: 68, avg: 0.120588, max: 0.699999, allTime: 8.199999}
{count: 68, avg: 0.122058, max: 0.700000, allTime: 8.299999}
{count: 68, avg: 0.117647, max: 0.700000, allTime: 8.000000}
{count: 68, avg: 0.123529, max: 0.799999, allTime: 8.400000}
{count: 68, avg: 0.135294, max: 0.800000, allTime: 9.200000}
{count: 68, avg: 0.141176, max: 0.700000, allTime: 9.600000}
{count: 68, avg: 0.138235, max: 1.000000, allTime: 9.400000}
{count: 68, avg: 0.133823, max: 0.799999, allTime: 9.099999}
{count: 68, avg: 0.117647, max: 0.600000, allTime: 8.000000}
{count: 68, avg: 0.150000, max: 1.899999, allTime: 10.200000}
{count: 68, avg: 0.114705, max: 0.900000, allTime: 7.799999}
{count: 68, avg: 0.135294, max: 0.700000, allTime: 9.199999}
{count: 68, avg: 0.123529, max: 0.700000, allTime: 8.399999}
{count: 68, avg: 0.138235, max: 0.699999, allTime: 9.400000}
avg allTime: 9.45ms
```