Workaround for slow flamegraph rendering

[itamarst]

Doesn't fix #390, but makes it better at least.

[github-actions]

Benchmark results

diff --git a/benchmarks/results/lots-of-peaks.json b/benchmarks/results/lots-of-peaks.json
index 383499f..54b4ac4 100644
--- a/benchmarks/results/lots-of-peaks.json
+++ b/benchmarks/results/lots-of-peaks.json
@@ -1,12 +1,12 @@
{
    "D1mr": [-"3771157 (188.06264867688517%)",-]{+"4748591 (210.84722680656392%)",+}
    "D1mw": [-"2763734 (1002.7001956474165%)",-]{+"3914404 (1379.4344136912155%)",+}
    "DLmr": [-"1492746 (2257.3344509639564%)",-]{+"2128504 (3604.3448196381237%)",+}
    "DLmw": [-"1858942 (1333.7673887649994%)",-]{+"2940618 (2053.3798326026304%)",+}
    "Dr": [-"231060633 (375.8621692938787%)",-]{+"210602938 (355.5532400495315%)",+}
    "Dw": [-"88001037 (338.04076205255154%)",-]{+"80000233 (323.2901030997181%)",+}
    "I1mr": [-"3555117 (1291.257363437142%)",-]{+"3863707 (1382.6562691923366%)",+}
    "ILmr": [-"14685 (224.7663551401869%)",-]{+"17585 (249.63410483321988%)",+}
    "Ir": [-"872039764 (403.39198904097907%)",-]{+"803852375 (382.78355848023403%)",+}
    "Overall": [-"1332452656 (406.55387644593173%)"-]{+"1297163564 (402.5398173069508%)"+}
}
diff --git a/benchmarks/results/multithreading-1.json b/benchmarks/results/multithreading-1.json
index 2d9d2d5..35bfadb 100644
--- a/benchmarks/results/multithreading-1.json
+++ b/benchmarks/results/multithreading-1.json
@@ -1,12 +1,12 @@
{
    "D1mr": [-"1866984 (413.64545831772375%)",-]{+"1858945 (411.9040468188705%)",+}
    "D1mw": [-"393456 (455.7661355950594%)",-]{+"393168 (455.6054014453298%)",+}
    "DLmr": [-"59324 (493.26483261518064%)",-]{+"58876 (486.4522481128979%)",+}
    "DLmw": [-"77459 (220.9427598913281%)",-]{+"78999 (223.60782963809046%)",+}
    "Dr": [-"77161209 (571.2328286082947%)",-]{+"62405178 (493.6363244709642%)",+}
    "Dw": [-"30820902 (440.2169730406361%)",-]{+"24749523 (388.7975207976146%)",+}
    "I1mr": [-"1638950 (586.5692113122628%)",-]{+"1652985 (586.4696637943213%)",+}
    "ILmr": [-"7958 (171.83607149304927%)",-]{+"8655 (177.4704618689581%)",+}
    "Ir": [-"254542209 (491.30873094686683%)",-]{+"213102045 (435.96543407633953%)",+}
    "Overall": [-"382464110 (492.83707107089475%)"-]{+"320273038 (438.02591214704705%)"+}
}
diff --git a/benchmarks/results/pystone.json b/benchmarks/results/pystone.json
index 3970408..764ea8b 100644
--- a/benchmarks/results/pystone.json
+++ b/benchmarks/results/pystone.json
@@ -1,12 +1,12 @@
{
    "D1mr": [-"4542966 (144.07376585255872%)",-]{+"6297481 (172.88836362554702%)",+}
    "D1mw": [-"1628141 (267.75567903740483%)",-]{+"869365 (162.2110351391289%)",+}
    "DLmr": [-"32802 (331.7507418397626%)",-]{+"32654 (328.78161563791775%)",+}
    "DLmw": [-"65725 (241.46577701248387%)",-]{+"66756 (243.96376967867155%)",+}
    "Dr": [-"367659717 (157.6310977517437%)",-]{+"301912091 (147.49473295617312%)",+}
    "Dw": [-"143586175 (159.9837295595579%)",-]{+"123184033 (151.86581541080648%)",+}
    "I1mr": [-"8784651 (214.74165578852526%)",-]{+"7840673 (204.372777443358%)",+}
    "ILmr": [-"7924 (170.99086185271457%)",-]{+"8499 (175.5399520042663%)",+}
    "Ir": [-"1160233461 (157.01681262908485%)",-]{+"1026850248 (150.5805305910022%)",+}
    "Overall": [-"1734495915 (158.00764418609307%)"-]{+"1515213718 (150.92017975812732%)"+}
}
diff --git a/benchmarks/results/version.txt b/benchmarks/results/version.txt
index d8f4897..9c2a20f 100644
--- a/benchmarks/results/version.txt
+++ b/benchmarks/results/version.txt
@@ -1 +1 @@
[-2021.9.2.dev9+gc3af8e6.d20211105-]{+2022.6.1.dev3+g7f0e920.d20220722+}