[MacPorts] #56915: Qgis3 port is very slow and unresponsive

[MacPorts]

#56915: Qgis3 port is very slow and unresponsive
----------------------+----------------------
  Reporter:  Malauch  |      Owner:  Veence
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  qgis3    |
----------------------+----------------------

Comment (by Malauch):

 I have made additional test and now I know everything. It's all about
 buggy high resolution support in QGIS3. It's not even about Retina
 multiplier but high resolution as general. General slowness is
 proportional to resolution. When display resolution is below lower then
 1600x1000 then there is no visible lag. Higher resolution are making QGIS
 laggy. Higher then 2560x1440 and it's more and more unsuable. Full 5K
 5120x2880 is just unusable.

 Only me report this bug, probably because there is no many people which
 uses QGIS3 installed via MacPorts on high resolution screens. Official
 installation package is still on QGIS 5.9.6 and works ok.

-- 
Ticket URL: <https://trac.macports.org/ticket/56915#comment:14>
MacPorts <https://www.macports.org/>
Ports system for macOS